Sure, just put it on another partition. Just install XP, then each of the linux distros. I'm a newbie and had not problem setting up Win98, Slackware and Mepis on the same box. I didn't let the last distro change LILO, I set that up myself. It may have configured properly, but I wasn't going to take a chance.
As always, just make sure you back up anything you can't afford to lose. Good rule of thumb any time you mess with your partitions.