Dual Boot Caldera Linux and Win98?

The title pretty much says it all. So... how do I do it?
I tried a long time ago, but failed ( kept getting a blank screen and no HDD activity when I chose Windows and not LInux as the OS I wanted to boot )and someone hinted that it may be that I didn't have Windows as the primary OS on the hard disk. That may be, I remember not wanting to screw with the Windows registry at that exact moment seeing as how I'd just gotten done trying to mess with the LILO file in Linux and have put it off untilnow.
So... suggestions?