how to make a boot cd (with austrumi)/crack the xp login

just been given a laptop by work, & want to crack the windows admin password so i can play games and use it as i wish,
have tried www.loginrecovery.com but it doesnt work for some reason? (although comes up with a user name & password). It uses xp pro, I have only the log in for a limited account.
So i was lead to austrumi, a linux program thingy, and needed to make a boot cd, so did this using nero 6 & the make boot iso option, problem is the screen just goes blank on the laptop when switched on with the cd.
Is there an easy way to make a boot cd from an iso file or to crack the xp admin password/user name?
thanks for any input
mr Bananas