dediğini yaptım ustam ama şimdide bu hatayı verdi.

To select an installation type or switch product, type the respective number;
Select action [N]: n
Retrieving information about the installed packages...

Downloading the file PSA_8.4.0/dist-rpm-CentOS-5-i386/build-8.4.0-cos5-i386.hdr.gz: 10%..20%..30%..40%..50%..60%..70%..80%..90%..100% done.
Downloading the file PSA_8.4.0/update-rpm-CentOS-5-i386/update-8.4.0-cos5-i386.hdr.gz: 10%..20%..30%..40%..50%..60%..70%..80%..90%..100% done.
Downloading the file PSA_8.4.0/thirdparty-rpm-CentOS-5-i386/thirdparty-8.4.0-cos5-i386.hdr.gz: 100% done.
Determining the packages that need to be installed.
ERROR: You have a newer version of the php-common package installed on your system.
The installation will not continue.

It seems that you installed latest packages from your operating system vendor's
site. To install the product packages successfully, you need to point the
auto-installer to the vendor's package repository. To do this, create a text
file with name .autoinstallerrc in the /root/ directory on the server, and add
the following line to the file:

ADDITIONAL_SOURCE="<type>, <priority>, <url>, <username>, <password>"

where you should replace <type> with "repomd" value, <priority> with a number from
1 to 999 (999 is the highest priority), and <url> with a URL of the vendor
updates source. The values <username> and <password> are required
only if your vendor's site requires authentication. Save the file and
exit from the text editor. Then run the auto-installer again.
Not all packages were installed.
Please, resolve the above problem and try installing the packages again.
If you cannot resolve the problem on your own, contact product technical support for assistance.
[root@lnx1 plesk]#