I use Paint for my cutting and pasting, color fill-ins, and brush strokes. Very basic program, but it gets stuff done. Working with images this small is tricky, at least if you want them to yield any detail at all when magnified. My solution: when pasting in Paint, I fill the PC screen with the target site, even if that site equals 1/30 of the entire image. That way, I'm cutting and pasting in as large as area as possible, which means a minimum of information loss. The result is a blog header with adequate resolution, at least as long as no one goes crazy with the + button (Google Chrome reference).