I ran below from ssh session as root and did not see the updated version of php in plesk not sure if it is installed or not, I rebooted the VPS and still no changes please help Thank You.
yum update php
2772/2772
Added 2772 new packages, deleted 0 old in 42.10 seconds
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Downloading header for php to pack into transaction set.
php-5.2.3-1.fc4.art.i386. 100% |=========================| 13 kB 00:00
---> Package php.i386 0:5.2.3-1.fc4.art set to be updated
--> Running transaction check
--> Processing Dependency: php-common = 5.2.3-1.fc4.art for package: php
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-imap
--> Processing Dependency: php-cli = 5.2.3-1.fc4.art for package: php
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-snmp
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-ncurses
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-xml
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-mbstring
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-mysql
--> Processing Dependency: /usr/bin/php for package: psa-turba
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-gd
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-xmlrpc
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-bcmath
--> Processing Dependency: /usr/bin/php for package: psa-kronolith
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-odbc
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-dba
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-pear
--> Processing Dependency: /usr/bin/php for package: psa-mnemo
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-devel
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-soap
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-ldap
--> Processing Dependency: php = 5.0.4-10.5.1.swsoft for package: php-pgsql
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Downloading header for php-imap to pack into transaction set.
php-imap-5.2.3-1.fc4.art. 100% |=========================| 12 kB 00:00
---> Package php-imap.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-xmlrpc to pack into transaction set.
php-xmlrpc-5.2.3-1.fc4.ar 100% |=========================| 12 kB 00:00
---> Package php-xmlrpc.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-xml to pack into transaction set.
php-xml-5.2.3-1.fc4.art.i 100% |=========================| 13 kB 00:00
---> Package php-xml.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-mbstring to pack into transaction set.
php-mbstring-5.2.3-1.fc4. 100% |=========================| 12 kB 00:00
---> Package php-mbstring.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-bcmath to pack into transaction set.
php-bcmath-5.2.3-1.fc4.ar 100% |=========================| 12 kB 00:00
---> Package php-bcmath.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-devel to pack into transaction set.
php-devel-5.2.3-1.fc4.art 100% |=========================| 42 kB 00:00
---> Package php-devel.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-pear to pack into transaction set.
php-pear-1.5.0-5.fc4.art. 100% |=========================| 27 kB 00:00
---> Package php-pear.noarch 1:1.5.0-5.fc4.art set to be updated
---> Downloading header for php-ldap to pack into transaction set.
php-ldap-5.2.3-1.fc4.art. 100% |=========================| 12 kB 00:00
---> Package php-ldap.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-odbc to pack into transaction set.
php-odbc-5.2.3-1.fc4.art. 100% |=========================| 12 kB 00:00
---> Package php-odbc.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-pgsql to pack into transaction set.
php-pgsql-5.2.3-1.fc4.art 100% |=========================| 12 kB 00:00
---> Package php-pgsql.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-common to pack into transaction set.
php-common-5.2.3-1.fc4.ar 100% |=========================| 16 kB 00:00
---> Package php-common.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-ncurses to pack into transaction set.
php-ncurses-5.2.3-1.fc4.a 100% |=========================| 12 kB 00:00
---> Package php-ncurses.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-gd to pack into transaction set.
php-gd-5.2.3-1.fc4.art.i3 100% |=========================| 12 kB 00:00
---> Package php-gd.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-mysql to pack into transaction set.
php-mysql-5.2.3-1.fc4.art 100% |=========================| 13 kB 00:00
---> Package php-mysql.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-dba to pack into transaction set.
php-dba-5.2.3-1.fc4.art.i 100% |=========================| 12 kB 00:00
---> Package php-dba.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-cli to pack into transaction set.
php-cli-5.2.3-1.fc4.art.i 100% |=========================| 13 kB 00:00
---> Package php-cli.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-snmp to pack into transaction set.
php-snmp-5.2.3-1.fc4.art. 100% |=========================| 12 kB 00:00
---> Package php-snmp.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for php-soap to pack into transaction set.
php-soap-5.2.3-1.fc4.art. 100% |=========================| 12 kB 00:00
---> Package php-soap.i386 0:5.2.3-1.fc4.art set to be updated
--> Running transaction check
--> Processing Dependency: libpq.so.4 for package: php-pgsql
--> Processing Dependency: php-pdo for package: php-odbc
--> Processing Dependency: php-pdo for package: php-mysql
--> Processing Dependency: php-pdo for package: php-pgsql
--> Processing Dependency: libmysqlclient.so.15(libmysqlclient_15) for package: php-mysql
--> Processing Dependency: libmysqlclient.so.15 for package: php-mysql
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Downloading header for mysql to pack into transaction set.
mysql-5.0.27-1.fc4.art.i3 100% |=========================| 35 kB 00:00
---> Package mysql.i386 0:5.0.27-1.fc4.art set to be updated
---> Downloading header for php-pdo to pack into transaction set.
php-pdo-5.2.3-1.fc4.art.i 100% |=========================| 12 kB 00:00
---> Package php-pdo.i386 0:5.2.3-1.fc4.art set to be updated
---> Downloading header for postgresql-libs to pack into transaction set.
postgresql-libs-8.0.8-1.F 100% |=========================| 14 kB 00:00
---> Package postgresql-libs.i386 0:8.0.8-1.FC4.1 set to be updated
--> Running transaction check
--> Processing Conflict: mysql conflicts psa < 8.1
--> Processing Dependency: mysql = 4.1.14-1.FC4.1 for package: mysql-bench
--> Processing Dependency: libmysqlclient_r.so.14 for package: mysql-server
--> Processing Dependency: libmysqlclient.so.14 for package: perl-DBD-MySQL
--> Processing Dependency: libmysqlclient.so.14 for package: mysql-server
--> Processing Dependency: mysql = 4.1.14-1.FC4.1 for package: mysql-devel
--> Processing Dependency: mysql = 4.1.14-1.FC4.1 for package: mysql-server
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Downloading header for mysql-bench to pack into transaction set.
mysql-bench-5.0.27-1.fc4. 100% |=========================| 33 kB 00:00
---> Package mysql-bench.i386 0:5.0.27-1.fc4.art set to be updated
---> Downloading header for mysqlclient14 to pack into transaction set.
mysqlclient14-4.1.22-2.fc 100% |=========================| 5.0 kB 00:00
---> Package mysqlclient14.i386 0:4.1.22-2.fc4.art set to be updated
---> Downloading header for mysql-server to pack into transaction set.
mysql-server-5.0.27-1.fc4 100% |=========================| 33 kB 00:00
---> Package mysql-server.i386 0:5.0.27-1.fc4.art set to be updated
---> Downloading header for mysql-devel to pack into transaction set.
mysql-devel-5.0.27-1.fc4. 100% |=========================| 28 kB 00:00
---> Package mysql-devel.i386 0:5.0.27-1.fc4.art set to be updated
--> Running transaction check
--> Processing Conflict: mysql conflicts psa < 8.1
--> Finished Dependency Resolution
Error: mysql conflicts with psa < 8.1