In Answer Wiki, I provided, how to install windows on MAC via Bootcamp. Most probably, It is possible to install Mac on Windows PC. A small software package called PearPC emulates the Mac hardware on windows PC. Try search for the name "PEARPC" on the net and try it out....
Boot Camp lets u install Windows XP without moving ur Mac data, though u will need to bring ur own copy to the table, as Apple Computer does not sell or support Microsoft Windows. Boot Camp will burn a CD of all the required drivers for Windows so u don’t have to scrounge around the Internet looking for them. System Manager, optional alt. At startup, hold down the option key (alt) to choose between Mac OS X and Windows.
and Run XP natively, once u’ve completed Boot Camp, simply hold down the option key at startup to choose between Mac OS X and Windows. After starting up, ur Mac runs Windows completely natively. Simply restart to come back to Mac.
For best information and how to install, please link to :