Hello. In my private server, at Silvermoon city is spawned with some gm vendors at the roofs. I didn't find a way to wall jump there, so I decided to try find other way to there. So I went to shattrath and opened my emu teleport hack. It can only teleport you to spots that are on your map code. (Etc. 0 easter kingdom, 1 kalimdor, 530 expansion areas.) I used my flying mount, and then used my teleport hack to go silvermoon city. Shattrath and silvermoon city are both expansion areas so I were able to teleport there, then I just flew to gm vendors ^^
It's not very useful I think, but if your server is spawned with cool vendors at SMC, this is useful.
-DelmoR-
PS. You can use WoWemuhacker to easily fly there too, but my server has it own anti-cheating system, so it detects flying and wallclimbing hack =( (but not speedhack and teleporter. )
PSS. My server is quite big and SMC is main city of the server so its full of ppl, so they see me flying there.