[J()ke|Z]

To set it as your background just right click it and go to set as desktop background. I think it mayhave to be jpg tho, im not totally sure about that. To Take em and make em into sigs just get a program like fireworks or paintshopro or somthing, take the tutorial and fiddle with it for a while till u get a feel of what it can and cant do. Then just experiment with diff pics and diff variations till ya get somthin ya like.

Or just get someone to make ya a sig freak: