hes new...and no you cant have a wallpaper in landscape. sorry
also if you have any more questions look it the stickies or do a search before you ask. most of the time the answer or answers are in front of your face. good luck. enjoy the site.
LOL...this actually gives me a good idea for a prank. screenshot the menu screen in portrait mode. get a friend's storm when they are not looking and put that screenshot as the wallpaper.