Hi
If you want a very powerful yet free Graphical Image Manipulation Program, download G.I.M.P. This was developed for Linux/Unix and has been ported to Windows. Has a lot of the same features as Photoshop, just doesnt cost an arm and a leg.

[link=http://gimp-win.sourceforge.net/]Gimp Image Manipulation Program[/link]

Its only small so isnt as powerful as Photoshop but iirc there are a lot of plugins you can download for it free of charge.

About 7.8MB file.