centos 4.5 php 5.1 - error dependency not found 'php-configurator'

[jhertum]

I'm allready busy for some days to install plesk 8.1 on a brand new CentOS 4.5 server.

I'm using the psa-installer and tried with most options off.

All the time I'm getting this error:

ERROR: Can't install product package psa
Errors just before:
- Can't find solution for dependency 'php-configurator'


I also tried to install with a downgrade to php4.3... but this wat not the solution. By the way, I need to run on php5.1. Because we programm our sites for php5.1.

php-mbstring
php-xml
are installed.

Anyone has a solution for me??

tnx
Jeroen