when you do the install make sure to just take it slow. Also when you unscrew keep them all lined up, then work backwards. Lastly when you take out the front and try to add the white front, when looking at it from the backside, im not sure if that's the lcd plug, but the second one behind the first make sure that goes in all the way; It has a habit of crunching up and you won't even tell. I noticed that the plug didn't come down because of this and i had to unscrew everything all over again.
before you even start make sure the home button fits well with the front. just insert it and make sure it doesn't get stuck, this happened to me which is why i needed a new front, but i'm sure you're fine.