Resolutions are 220 x 200 [except for one]; it should fit most phones, I think. I have an LG Rumor, if that helps anyone.
Credits for the scans go to fujiappletan
*Ooops. I accidentally put LJ Rumor. My bad. LG Rumor. orz
EDIT: I use a MicroSD card, so if you guys have one, I'd save the image to your computer, then copy/pasta it onto the card. As far as "downloading" the backgrounds go, I'm not completely sure. Sorry I can't be of more help.