i didnt really want my iphone jailbroken but i knew i would. so i ran blackra1n. i wanted video later so i got cydia, got ifile and cycorder, and deleted cydia with ifile. i then deleted blackra1n cuz it was taking up room on my springboard. i then decided to get blackra1n again. when i ran it it didnt work. i tried again, still no luck. how can i get cydia, rock or blackra1n back?