I'm curious if it is possible to resize my main partition(ntfs/winxp) in order to make room for a new partition where I'll be installing Mandrake without the help of Partition Magic 8.0 (because I don't have it).

Any help would be appreciated.

I've got about 12 gigs free by the way. The computer management device doesn't offer any solutions. I tried Partition Magic 6.0 as well without avail.