based on quick testing yesterday, the free version7 I have found these bugs:
Global:
-when entering locations outside Azeroth (Outland/Northrend) the game game shuts down with error1006 (streaming status not ready). which can be resolved only by teleporting the character back to azeroth (via Heidi sql)
This is a client issue. Try to check this:
How to fix: Cannot stream required archive data / WoW Error 134 for 4.3.4 Cataclysm
The other issues (atleast trap launcher & stable master) are working on V12 (VIP).