I’m pretty sure that build of panda already has python 2.5. So that just leaves pywin32. I think that adding pywin32 is simply a question of unpacking it, then copying the files into the thirdparty/win-extras directory. Those get copied into the distribution’s python tree.
Panda doesn’t really have any support for phidgets. There was this one time that one of my students was using phidgets for something. For convenience, I just stuck the phidgets distribution in that directory and I kinda forgot it was there. I suspect it’s wildly out of date.