Sorry, that's just not possible at this time. It's actually a small glitch between usergroups and the rank system. We've got a major update coming up soon to vB and it may fix that.

Hmm, I didn't think it was a glitch, but more just the way Vbulliten was programmed. I guess that's a bit reassuring for everyone, including mods like tep, that want a diff tag to represent them but should stick out with a name that is easy to find and contact if necessary. ^^