Running Linux File Manager on Windows XP

OK: apologies (well) in advance if this is as stupid a question as it gets.

I need to change the 'owner' on certain files and folders within my Linux web hosting account.

Unfortunately I use Windows XP and now need some kind of Windows application that can open a window within XP that lets me look at the files in my hosting account. The application should then let me change file permissions and owners.

Does anyone have any idea how I can do this?

Thx, Boa

If your hosting service allows ssh access to your account you can use Putty