Firstly, posting twice isn't going to get the problem solved any faster Marianne. In fact, it might just land you up with conflicting advice which could mean you land up damaging your system. Fortunately, I doubt this could be the case here.
Anyway, try searching for these files...
FREECELL.EXE (for Freecell, funnily enough)
MSHEARTS.EXE (Hearts)
SOL.EXE (Obscure, I know)
WINMINE.EXE (My favourite!)
... by clicking on Start > Find and typing in the relevant filename and you should find them in c:\Windows. If you find them, just right click on the file and click on Send To > Desktop (create shortcut) and - lo and behold - and enjoy Freecell! (or Hearts, or Solitaire, or...)