Bootcamp/XP - Cant resize partition

I wanted to make my XP Partition on Bootcamp a few gigs bigger to accommodate a few games I have purchased.
I go to Bootcamp Assistant and all I get is the 3 options (totally remove xp, burn a drivers disc, or install xp - its already installed!)

I know it can be done because I have done it before! (I have got rid of the XP partition and then got another since then though)

any help greatly appreciated!

I was wondering the same thing as I would like to trim the Windows Partition from 30GB to 25GB.

You can not re-partition your BootCamp hardisk. The only way to add more space is to re-install Windows all over and partition more space during the installation. I've also encountered this same issue.

No, You can do it,
You get this screen



You can re-move the slider to resize it again

-its not the screen from the initial installation, you get it again