We installed it on Win XP, With My SQL, Apache and Perl.
After some sweating, almost quiting, we were able to install it. We created a document with screenprints and all to install the Bugtrack (and MySQL, Apache and Perl). With this document we can do the installation in less then an hour. The document is in Spanish, I am translating it now to send it to the Bugtrack team. But when u want to receive the spanish version just mail me.
Bugtrack is an simple but good tool for bugs. It has all the basic functions (I believe that the more options u add the less efficient it becomes) and is stable. In the latest version it is also possible to add attachments, which is very easy.