Brian,
You'll need to edit the pics in some sort of image editor so you can save them as .jpg's and set the correct size. I use a payware program thesedays but I used to use Paintshop Pro trial edition which was free in the 'old days'...

I think Murray referred to a freeware image editor called 'The GIMP' in a previous post but I could never get it to work.
If you do a Google search for 'freeware image editor' or something like that you might find a useful download somewhere... Or someone else will post a better answer (probably)
