HHEELLPP!!!!!

I wont an acc name MLG but is been taken and last online was 07-11-2010
is it possible to delete the acc or something so i can make a new one>?

No, just make a new E-mail and re-create an acnt. Use GB acnt

That depends, is it your account? I don't know anything about the network but if it isn't then you're pretty much fucked.