LordDrighten
Probably spam

a: wallpaper There are a few ways one you can grab just about any picture online through the phone. Click and hold on a picture and pick save. The other way is by hooking you phone up to your computer and saving it on the memory card. You can set any picture on your phone as the wallpaper. See c: on how to put files on your phone.

b: No idea yet I haven't tired. I know you have to enable it in your settings first.

c: Plug your phone into your pc/mac go to settings > SD card & phone storage put a check in the box that says "Use for USB storage" Your computer will then see your phone like a USB drive. Copy over any music, photos, etc to the card. When your done remove the check from the box so your phone can access the card again.