Not easily, but then in the day of the virtual machine, dual booting is really kind of a thing of the past. Just download something like VirtualPC and load Win98 into a virtual machine and run it that way. No mess involved with dueling bootloaders, since Win98's will obliterate XP's without even asking, no hassle of trying to migrate an existing installation to another partition, etc.
Forgive me if this is the wrong forum.
Question: I had a 160G which I Partitioned into c: primary and D: ext formatted NTFS. I just got a 640G Partitioned e: primary and 2 ext f and g. Can I move win xp from C: to E: and then format C: as fat32 and install win 98 and give me a dual boot system? I need 98 as XP won't support some of my older software. I don't want to lose 130G of info I already have