Let's Learn Tunnels & Trolls. Who's with me?

The full reasoning process is in this post (Let's Learn Something), but here's the gist of it: I'd like to pick up a game with a few folks, have us all learn it together by running a quick introductory module, then shelve it and move on. I got some feedback in favour of T&T so that'll be first up.
Two questions need to be answered to get the ball rolling: 1) who's interested, and 2) what edition is preferred. I have PDFs of 1st edition ($1.95), 4th edition ($4) and the 5th(?) edition quick-start rules (free), plus a hard copy of edition 5.5.
For the module, I'm thinking of using the introductory dungeon in the back of the 5.5 rulebook (so no peeking). If it really turns out to be too short to scratch our itch, I can always crack open Rat on a Stick and we can explore the first couple of levels of that.