Question for Computer Gurus

[HummerNewbie]

Got a question for you computer gurus out there. I had XP Pro crash on me and it would constantly reboot during startup. I decided it was time for a new hard drive anyway so installed new drive and XP Pro. I can access the old drive but it will not allow me to copy my old info. If I go into Documents and Settings on the old drive it will not allow me to access the "Admin" folder which was my username on the computer but will allow me to go into the other folders. I did use a password and had set the folders up to be private and I am using the same settings on the new XP install. I also tried coping everything using "Knoppix" which is basic Linux on a bootable disc. It allows me to go into the folder and view the files I want to move to the new hard drive but will not allow me to move them. Any recommendations?