I recently, very recently, installed backtrack 4 final onto my 8 gig usb device using Unetbootin. However, I can't log into Backtrack 4. I boot from my usb and try to log in using the the username and password that this site says are default, but no luck, just an error saying I have the wrong username or password. Could I get either clearer instructions on what to do when I boot up or a username and password that works.

Also, when I boot up Backtrack 4, its all text based, is it possible to get Backtrack 4 to start up with a login screen like on other linux versions?