I’ve just set up winxp on a second partition, I’ve two now (dutch and english) and I get the OS menu to choose what I want to start up but … I can’t because at start-up my USB keyboard doesn’t work … :s now I put my old PS2 keyboard in as well and with is works … strange or just doing something wrong? 
what boot methode or menu do you use?
misschien moet je iets in het bios veranderen.
Go into the BIOS and make sure USB Legacy Support is enabled.