If u don't wanna mess around wit blank icons, u can use Supreme Preferences 3.0 which is definitely good 2 have
, go into it in settings, then Mobile Substrate, Supreme Substrate, then turn on Supreme Security, it will prevent icons from being moved and deleted(never worry when passing ur phone off 2 somebody to use or play wit.)
. It also has a bunch of other kool features like how many dock spaces u want, battery % etc. It really helps avoiding all these other xtra downloads like 5 icon dock etc.