unlocking interface?

anyone know how to unlock the main default interface on the LG Dare (its in a little square with the clock/date on it and also the little arrow thing on the side that lets you go to your music pics ect.)
i unlocked it once when i first started the dare up but i forgot how i did it also does anyone know what resolution is best for wallpapers.

thanks

i don't think u can u can change the clock format and turn of the shortcut arrow in display settings