Expert Guitar. This one was harder to sight read than the Nugent one, but still not terribly difficult. Being able to tap those solos makes it really forgiving.
This is the same exact chart (unless I didn't notice something), but this is the version you play when you beat Hot For Teacher, prior to unlocking the final venue/gig.
Welcome to the Jungle! Slash will play along with you anytime you play this song after you have beaten it, whether in career or quickplay (so far as I know).
Starting from the main menu, this shows you all the characters you can select from, then on to how the venues and tiering works in Guitar Hero World Tour.