Quick post, for one of those 7000 developers that use PAMPA, there is a new zip upgrade to download able to bring PHP 5.3.5 in your PAMPA folder.
The structure inside this zip is the same one, the service should be stopped or quitted before you can extract and replace all files.
Please backup your current php.ini file, inside PAMPA/config folder, in order to eventually update the new version or simply put it back as it was before ( really few changes there since the 5.3.0RC1 ).
The destiny of this project is still under evaluation but at least now it is offered with the latest, stable, PHP version.
Have fun ;)