What happened to the Vista Ultimate Extras website Microsoft launched a few months ago?

Good question! :NOTSURE:

http://www.ultimatepc.com/  ?
http://www.ultimatepc.com/#extras

yeap, that's the place. i wanted the sound schemes. i downloaded the pearl and glass schemes via windows update but they're exactly the same as the default scheme. i was hoping for a download link so i could overwrite what's on the rig now. thanks anyway, funny pants dude.

Is it really worth upgrading to Vista Ultimate from Vista Premium?

You'll need to decide for yourself:Compare features
(Mouse-over the descriptions in the first column for more info)

Have to agree with Zubaz. If you wouldn't use the features that come with Ultimate why upgrade just to use up your resources. Then there is the 'cost' thing also.

Spend the difference in upgrading to Object Desktop Ultimate or ObjectDock Plus if you don't have them all ready.

Just my opinion.  

Maybe they gave it away as one of the 'extras'

I'm happy with Home Basic,it suits me just fine.I seem to avoid some of the problems others have,including two family members, with Home Premium.
I would need more ram and a better video card to get the most from an upgrade.Not worth the $$$,imo.
Stardock is doing just fine in the beautification department,who needs Aero?

It says "Have more fun with your PC" isn't available with Home Basic.
Lucky for me I found WinCustomize,I've got that covered.

Very, very funny

And if you're still not having fun with your PC, I'm sure that forum members will be happy to recommend a few other sites. Gnome sain'?.