How to sync Facebook contacts to IPhone 4s?

There was a new Facebook app update so I did it and went to Friends, then clicked the arrow, but "sync contacts" doesn't show up anymore. It just says "Find Friends" so I don't know what to do now… I really want to get my Facebook friends numbers to my phone without having to add them all myself.
Is there any other way? I downloaded SmartSync but it only updates the contacts you have right now's pictures, it doesn't add anymore contacts…

If you're desprate try uninstalling it and re-installing it. It will have you re-enter your information and let you sync all your contact information because it thinks it is the first time accessing.sorry, this isn't a permanant solution and all. But it's what i got…