If anyone cares, this procedure worked fine on a Hackintosh (non-Apple-manufactured Intel box running OSX as main OS).
The only hangup was that Gparted didn't respond to mouse clicks in any predictable manner. If I clicked its icons, buttons, menu titles right in the middle, nothing would happen. But then far out from its window, where nothing but barren desktop remains, the pointer would suddenly turn into a finger. Gparted was mis-tracking my otherwise well-working mouse by, random directions and distances (one being 5 physical screen inches to the left and up).
So I basically went and clicked everything like a total noob - one the empty OSX background desktop, the VMWare title bar, you name it- and once something finally responded in Gparted's window (the only way to get a response!) I used the arrow keys, the number keys, and Enter to navigate to and to specify / launch what I needed to.
It was a bit scary way to resize a 40 Gig WinXP virtual machine system drive to 266 Gigs, but it got done with no damage caused.
Now if VMWare only begins supporting MIDI as well, I'll be all set.
