Someone please help!

I cannot move or delete files from my secondary hard drive anymore, I
managed the hard drive volume in windows vista  before I reformatted my
primary hard drive back to xp. Now, I am assuming all the permissions on
those files on my secondary hard drive are still there, so now I cannot
modify any of those files.

What should I do? I cant reformat my primary back to vista, what can I do to
reclaim or reset all the permissions
for the files in that drive.

Everytime I try to do something I get this

"access is denied"

"make sure the the disk is not full or write protected and that the file is
not in use"

I have check all those things
I even have third party application like 'unlocker' installed to make sure
no processes are using those files.

any help is appreciated!!

thanks in advance

fav