Migrate to new server, Web Apps fail

[scci]

I used the migration tool to moved from a server with an older CentOS with Plesk 9.5.2 to a new server with a newer CentOS with Plesk 9.5.2.
All sites seem to be working, but I can not install web applications.
For example, the old server had several WordPress versions including 3.01 installed.
The new server does not show any web applications, but when i go to the APS catalog to add WordPress it says it is installed and so is some older versions.
When i go to a site and search for Wordpress I see the versions to install.
When i try to install Wordpress 3.01, I get:
Error: Web application is invalid
How do I fix the application lists???

 

[IgorG]

As far as I know WordPress v.3.0.1 is not coming with Plesk, it was installed somehow manually on the source server.
According to http://64.131.90.31/PSA_9.5.2/dist-rpm-CentOS-5-i386/opt/vault/ there is 2.3.3 version shipped with Plesk.

 

[scci]

We used APS to install Wordpress and other applications on the source server.
We had not installed any applications when we started the migration.
After migration no applications appear in the applications vault.
When i tried to install Wordpress 3.01 on the new server is when i get the message it is all ready installed.
But there is still no applications listed.
When I try to install Wordpress on a client site it shows up as available, but when i click Install, i get "Error: invalid application".
Wordpress is an example application. I can not install other applications that were on the old server because the new server thinks they are already installed.