Go to this page...
http://www.keepingittwisted.com/xbox_register.aspx
Enter a user name eg "ajshbjsafbv" (anything will do)
Enter a email add eg "
[email protected]" (basically anything with @ and .com will do")
Enter DOB eg "1/1/1987"
Enter password eg "1" (I choose 1 because its so close to the tab button on keyboard.)
Hit return to create fake account.
Next enter "AA4XPN3" for the access code (its ALWAYS the same)
Type the words from the word verification into the box.
Hit enter!
The next screen will show you if you've won or not and either way gives you the free 48 trial code. If you didn't win that time don't worry!. Just hit the back button twice and change only 1 character from the email address you previously entered (in my example above I would just remove/add a single letter). Everything else stays the same including username and DOB but you will need to type in a password again (remember how I chose 1 for closeness to the tab key

). Go through the whole word verification thing again then rinse and repeat as many times as you want untill you win something, simple.