"Cannot copy Filename: Access is denied. Make sure the disk is not full or write-protected and that the file is not currently in use."

I am moving the data because a trojan snuck in.  I killed the trojan by setting the drive as external, and scanning.  However, I could no longer log onto the formerly infected drive. It hangs at the welcome screen.  So I loaded XP Pro onto another drive, and set the old drive as external. I can now see the data, but get the "Access Denied" message that will not let me copy the data. 

I either have to be able to release the data to the new drive, or access the old drive by booting to XP.  As of writing I can not do either.

I have tried the XP recover on the old drive, but the trojan seems to have changed the admin password. I then tried to clear the password using a Linux boot disk, and it showed the account unlocked, but I still hangs at the welcome screen.

Ideas appreciated.  I can't move ahead until I can get the data off. Thx K.