Quoted from another source:
1. go to 'brew > shared > wallpapers'
2. Add wallpaper (size that worked for me was 179 x 205)
3. Re-boot phone
4. ::important:: Go to Get It Now. go to "get pix" and go all the way thro like you're going to buy a wallpaper (stop where it lists the prices) and then exit. Your wallpapers will show up in your images download folder
JPG > 128x132
GIF > 128x132
PNG > from 128x132 to 640x660 (the phon[/QUOTE]e will automaticly resize PNG files)"
End Quote
Use at your own risk. YMMV
