okay look...im gunna teach u all how to do wallpaper on paint

okay now go to paint and open it!

go to image,Attributes, then type in with: 1024
Height: 768

then eather look on photobucket or google for a background for ur wallpaper..like this
yellow bg
now save it,then go to edit, Paist from..,and then pick the yellow bg

when u do that..u have to strech it out so it fills all the white parts.

when u have that done...now u gotta pick something to go over that..if u want..like this
girl
now save this,then go to edit, Paist from..,and then pck the anime girl above.

now u put her w/e u want to.

now that u did that..u kan add more pix fo r w/e u want to it

this is what i did wit the stuff i gave u
p and o

now if u have any more questions then tell meh!!
glad to help ya!