macdrive7 looks like the software needed to mount hfs+ on windows machines.

http://www.google.com/search?client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&channel=s&hl=en&q=windows+xp+hfs&btnG=Google+Search
windows xp hfs - Google Search
http://www.macwindows.com/disks2.html
Sharing Disks - Windows Products
http://hem.bredband.net/catacombae/hfsx.html
HFSExplorer
http://www.tomshardware.com/forum/103879-45-read-volumes-windows
How to read hfs volumes with windows xp
http://forums.macrumors.com/showthread.php?t=293781
HFS on Windows XP - Mac Forums
http://www.f.kth.se/~f96-bet/hfsutils/
HFS utilities for DOS, Windows and OS/2
http://www.mediafour.com/products/macdrive/
Mediafour | MacDrive
http://www.mediafour.com/support/macdrive/
Mediafour | MacDrive 7