Restore options ?

I Have a delicate problem.
The XP boot drive on a network client has chrashed, without any usable backup. How will a Restore Operation effect the user accounts/Profiles.??
I have a user profile with Folders and Files marked Private, that is very important to get hold of. I can?t find a support description anywhere that says if it?s safe or not.
Please help me. Klaus 06/06-2003