Doh,
I ended up going to a WM6 ROM (Helmi's original) - just to confirm that the 6gig card worked with the updated drivers. On that Rom, the card didn't work originally - UNTIL I installed the 777 drivers. After that, my card works.
Besides that, i really dislike the ROM - and wish I could go back to Saridnour's 3.5. It's not as quick - and I lost another 8 megs of RAM by direct comparison after a fresh install.
I'm hoping someone can give me a solution with respect to going back to 3.5 and having my 6 gig card work. I'm not so happy with WM6 right now.