thank you very very much for your replies guys, appreciated!!

i have a couple of more questions please

1) i am not very computer savvy, can you explain to me in a bit more detail what you mean by "make one directory for each wow session"?
2) when you say get the key from a local store you mean not via the online store but buying the battlechests in the store?
3) also you are saying you upgraded another account to a full account first before recruiting yourself as RAF. Does that work? I thought you had to send someone an email who has to accept first, then buy the battlechest/upgrade
4) you symlink the data/interface folders instead of having multiple copies of wow installation on your disk (which makes sense). does ISBOXER do that automatically, ie can i change user interfaces for all my group with ISBOXER and just have 1 installed version of wow, instead of creating symlinks which frankly I have no idea how to do (doesnt mean i cant get into it but as i am not very PC savvy I would like to go down the easiest route)