hello Reeve of shinra!
yup, that's the solution!
G2 was written w/ integration in mind from day one from what i understand. whether it's postnuke, vBulletin, or your own user table you custom coded.
here's a link to how it looks. this site isn't live yet (the live site is just the root domain running postnuke). i hope to have the site migrated and live on VB this week!
just a couple things i need to do still... (banner integration for our sponsors being the sole thing from making it live i think... i've yet to search, but betting there's a solution on these forums, heh!)
i'll probably edit the G2 css to match the VB3 css. i havn't done it yet because i'm not sure what style/colors we'll use in VB3 yet, so why edit G2's twice?
at first i disabled G2's css and of course then VB3's kicks in and G2 matches perfectly. but you loose functionality in G2 if you do that (slideshow and such).
so, w/ the help over at menalto - G2's css is in place as well.
and here's the link! this link will be broken eventually as the site goes live, but then it'll just be the root domain.
http://www.cvreefers.org/VB/gallery2.php