Restored files date problem

Hi!

I lost some important files (for some still unknowed reasons.!..), I restored all of them using N360 and they are back now, BUT I got a problem:every file has now the same date of creation ! so all documents are with the date of the restoration, all my pictures' files are also with this same date, so for example Picassa is sorting my files all with this same unique date.

It's a real mess to manage my files now.

Is there anyway to recover the correct creation dates (which are present in the properties of each files or EXIF data) ?

I'm runing Win 7 Pro 64bits

Thanks for your help