Best-hosting.Ru Debian Repo.
See http://debian.pro/336 for details
Contact vlad@debian.pro, if you need any assitance there.


Use:
root@host:~# echo "deb http://debian.best-hosting.ru binary/" >> /etc/apt/sources.list && aptitude update
to use this repo.
There are PHP 5.2 packages for Debian Squeeze.
Use:
root@host:~# aptitude search php52
to see list of php 5.2 packages from this repo