You'd better think again - the information is still there you just cannot see it because performing a file delete in Windows only acts to tell Windows XP not to display the file on your desktop or in the folder contents on your PC screen.
1. In Windows Explorer, (for this select "Start"=>"All Programs"=>"Windows Explorer")
2. Select "Tools" and go to "Folder Options"
3. Click on the "View" tab
4. On the "Hidden files and folders" tab, click on "Show hidden files and folders"