You can. Sadly!
you may have to be high lvl
You have to be lvl 30 to get in Marleybone
you can only if you are a lvl 4 and about to be a lvl 5
up to date from 1/11/12it is lvl.....60
NO
No the highest level you can get is lvl. 50 Aka Grandmaster Wizard. actually now its 60
you have to complete the lvl 48 balance quest
you get the helephant spell by the fire teacher in ravenwood when you are lvl 42
At the moment, Azteca opened, so lvl 90.
at level 25/30
Ask your higher lvl friends to take you to places and do high lvl quests after taking an experience elixir.