I'm looking for a Project Management App that I can install on my website (preferably for free). The only one I found was ASP, which my server does not support.

Here are the languages which I can use (any help would be appreciated): HTML, VRML, C/C++, Perl 5.6.1, PHP 4.0.6 w/Zend Optimizer 1.1.0, TCL, Python 1.5.2, CGI, SSI, JavaScript, WAP/WML/Wireless, XML, and Shockwave/Flash.