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 I Change My iPhone Number?

Would past texts be able to see it?

Here's my dileema: My "ex-girlfriend" is weird & wants something out of me (She's really bi-polar and everytime I talk to her she gets angry & mad & I walk away she's all "Oh, please don't be mad at me, I'm so sorry") so I blocked her
I say "ex-girlfriend" as we never met, we hooked up over Facebook as we're going to the same college over the college app, big mistake
She's a freak, and I blocked her number, but she gave my number I texted her with to a guy who's calling me constantly

If I change my number to a different one, will they still be able to contact me? I mean, like will the "Boyfriend' contact number be changed as well? I want to change my number so they can't find me or contact me any more, is there a way to do that?

Iphone 4s 32 GB Usage problem?

Ok so i have 32 GB iphone 4s and i have installed apps that are 2.155 GB (including music), yes i have calculated.
now the problem is that when i go to check the Usage in Iphone settings, it tells me that i have used 8.5 GB already instead of 2.155 GB and i have 19.7 GB available.

my question is where is hell my 6.5 GB go? Just curious where it is eating my space?

What's a good app to edit videos?

What's a good app to edit videos with? I have a iphone and make youtube videos often. I'm looking to add music from my iphone to my songs and stuff like that and edit other videos into other ones. What's a good app?

Can The Police Track My IPhone 4s?

I Already Know That The Police Can Track It, But I Was Wondering If They Could Track My Phone If I Don't Have ICloud, I Don't Have An Apple I. D, I Don't Have ITunes Or Any Apps, I Have My Location Services Off, Find My Phone Is Off, I Don't Have MobileMe, I'm Not Conected To Wi-Fi, And My Sim Card Isn't In My Phone, Can It Still Be Tracked?