php 5.1.4 problem

On desperatemen.com I had WP 2.1.2 installed. The hosting company upgraded to php 5.1.4. Then ALL my pages were blank. Even the admin/login pages are blank too.

No error, no anything.

I tried updating WP to 2.3.3. Thought this will solve the issue. But it didn’t.

I have a info.php file on server if anyone is interested in helping me: desperatemen.com/info.php

Any thought about this?

Thanks,
Alex

Edit: the error logs on server are also clean … no error 😮