how to delete photos and change app background wallpaper?

[asouns]

how to delete photos synced from itune without sync again?

how to change the wallpaper for background of all app?

thanks

 

[sassenach74]

how to delete photos synced from itune without sync again?

how to change the wallpaper for background of all app?

thanks

It's not possible to delete photos without syncing, works the same way as music, you select which ones you want via iTunes, then sync.
If by app background you mean the homescreen.....this is not possible.