Where is this cheat sheet? I can't even login...
Regarding being a 'Nix newbie, firstly I recommend you got to this web site
, and read it through from begining to end. That should put you on you feet. Another good begining to end read is this web site
. Secondly, the book UNIX For Dummies
, by John R. Levine and Margaret Levine Young was one of the most informative and "easiest to read" IT related books I've come accross. Thirdly don't forget the manual!!!
UNIX and Linux come with a built in manual. From any shell you can just type the command;
You will be presented with an explanation about the command, it's correct syntax, various examples of how to use it, and various other information.
Regarding not being able to login to BackTrack; after inserting the CD in your box, reboot. After the BIOS loads, you may (or may not) be asked if you'd like to boot from the CD. If you're asked, just press Enter. If your CD burned correctly, backTrack should start booting and you'll eventually get to a screen that looks like this (though without the VMware Player stuff);
This is the login screen and if you read the text, you'll see the cheat sheet don was mentioning. The root username is "root". The root password is "toor". Then start KDE by typing "startx". You may want to run some of the other options mentioned first like the DHCP daemon first.
BTW, it doesn't mention this, but if you want to start Fluxbox, then this is the place to type "flux".