vbulletintemplates.com is a 3rd party website, not part of the official vB support forums.
Mind you, so is vB.org, strictly speaking, but at least it has a close affiliation with the offical vB.com support site.
As for upgrading to vB 3... not yet, since it's not available... vB.org is meant to be the "hack" support site, so it should run a vB version that has lots of hacks - vB 3 hasn't been released so running it defeats the purpose of having vB 2 hacks here.