I've installed Parallels 6 on SL with a Bootcamp partition with Win XP. I created a new VM using the Bootcamp P. In the VM list I now have one "My Boot Camp VM" and one "Windows XP". Why?
I guess Parallels was trying to be helpful and created a Boot Camp virtual machine for you when you first started Parallels Desktop. Right click it and select "Remove". Click Move to Trash.