if you read first post, i think you should know that winterboard is for jailbreak phone.

@futura,

not to make you piss off, if you do use itunes store (if you search thoughly where there is no such thing as theme apps or custom themes for spring board) and read around (not only LYN) and you should know that iphone default only restricts to lock screen wall paper which i think that apple thinks that the themes on the springboard will use more battery and more memory and maybe it will slow down the loading.

Therefore only jailbreak phone can put in custom themes