burning cursade

ok ppl iam facing a dilema
my main is a lvl 70 rogue and is on burning cursade
but the account i wish to play is a lvl 40 shammy not yet upgrade to burning cursade
soo does anyone know how would be able to play with my lvl 40 shammy...
would i have to uninstall wow and reinstall it and not install bs soo i can jst play with my shammy or can i already play it on my currrent wow / bc 2.12

yeah of course you can play the shammy .
why shouldn't you ?
if you don't have bc installed and you try to get in an acc which is upgraded to bc, you wouldn't be able to log into the chars.
but if you have bc you can play with accounts that don't have bc.
sry bad english ^^
<- german.

Lol^^ Just start World Of Warcraft... login....and TADAAAA.
But you can't create Bloodelf's or Draenei and can't go to outland.