Failed Installation on FC4_64

[prpm]

Hi everybody... the installation of PLESK doesn't finish well.
Got this message of error:
Parando httpd: [FALLÃ]
Iniciando httpd: Syntax error on line 2 of /etc/httpd/conf/httpd.conf:
Invalid command 'AddType', perhaps mis-spelled or defined by a module not included in the server configuration
[FALLÃ]
error: %post(sitebuilder-core-1.0-fc4x86_64.build060607.12.x86_64) scriptlet failed, exit status 1
Error while execute command rpm -U /root/psa/PSA_8.0.1/dist-rpm-FedoraCore-4-x86_64/opt/sitebuilder/sitebuilder-core-1.0-fc4x86_64.build060607.12.x86_64.rpm
ERROR: error while executing RPM
ERROR: Installation failed

Any suggestions?????
Thanks