Hi,
I've finally got round to putting together this tutorial which will hopefully be invaluable to all budding genealogists and those looking to learn basic photo restoration.
Most restorers use Photoshop, which will set you back a few hundred pounds for the software. In this tutorial I demonstrate the benefits of using the free GIMP software program and how it's an easy and free entry in to the world of photo restoration.
Good luck.
http://youtu.be/qTj8-c34i0c