OUCH!
Yes I also use a mac. I use windows xp & 2000 on my mac via using Parallels. Parallels is superior to mac's bootcamp for a couple reasons. (1) You do not need to reboot to start up windows. (2) Parallels supports 64 bit Windows XP, Bootcamp does not. (3) Can easily drag & drop files across between windows & mac interfaces, even share programs with each. (4) Can run multiple windows at same time (I have 2 x XP & 1 x 2000 installations, though Parallels does not officially support 2000.) Parallels is a virtual OS, similar to Virtual PC, except far superior & more advanced. Parallels 4 uses less ram & cpu, easily configurable according to your system, unlike other virtual OS softwares. Parallels is fast, unlike the older Virtual PC. (5) Parallel's virtual OS's can be moved to other machines that run Parallels.

As for your questions. A difficult one. I cannot give definitive answers myself. The University's ISP would have some kind of record. However that would require massive work to scour & research it. Not sure they would be willing to put the multiple man power & time required into it. And then, not sure they'd be able to prove any such files came from you yourself, depends on the logging records for each computer terminal on their network at the university itself.

You could possibly sound out some light testing questions with some of the university network tech staff.

Someone else might have experience & knowledge at this. Pity et voilà is not helping out on these forums any more. He works/worked at a university, so would have more knowledge about the options.