You simply need to take ownership of those folders and files.
MVP Rick Rogers has a good explanation of the step by step process.
Taking Ownership:
http://rickrogers.org/fixes.htm#Taking_ownership
--
Ronnie Vernon
Microsoft MVP
Windows Shell/User
"HJM" <(E-Mail Removed)> wrote in message news:6050A65A-AFE8-4EDA-9EF0-(E-Mail Removed)...
>I had to reinstall XP, but now I can't access some old data (e.g. my
> documents) of previous user accounts under "documents and setting" that had
> administrator privilege. Is there any way to around this?