i dont get why would you need to have XP and 98 but has some people have said above you can particionating the disc (for example C:/ and E:/ ) and installing a resion of windows on each particioni have use this but a partition my disc in two, in one particion y have windows XP ando on the other i have Linux of course you just cinfigure the bios tho start whith eathier particion you are using