How to sync my apps without losing my information?

I have an iPhone 4S, and I'm about to switch to iOS 7. There isn't enough room on it, so I'm going to put everything on the computer. However, every time I put all my apps back on my phone, all the saved information is lost. Is there a way to sync my apps without losing information?

No notification banners/alerts using iOS 7 on my iPhone 5?

I used to be able to get banner on the top of my screen if I'm not using my fb app and I get a message. But after I downloaded the new ios 7, it isn't working anymore. I have gone into setting and notifications centre, and all that. Still not working. Help?

Added (1). My friend has the banners

What are these books on my iphone?

On iTunes when I look up my phone information, it says i have 3 books. But I don't have any books, or newspaper, or magazines on there so I have no idea why it says I have books.

IPhone IOS 7 Keyboard tweak?

I just downloaded the new IOS 7 software for the IPhone 4S. I love the new look although its odd considering how long I've had the old look. But does anyone know how to change the keyboard to black with white letters? I only want to change the keyboard. I tried inverting the colors but I don't like how it inverted everything.

How to stop iPhone iTunes radio from showing up on Facebook?

I suffer from panic disorder and listen to soothing music at night to try to put myself to sleep. I just discovered that, without my permission, the new stations I've created on iTunes radio have been spamming my Facebook profile. Kind of embarrassing to have all my FB friends see I'm listening to easy listening, Enya, etc.

Can someone please explain to me how I get this off and stop whatever connection there's between the two? To save me future embarrassment? Thanks.

Added (1). Excuse me, Mr High and Mighty: I didn't have to have an iPhone. I got an old one for $99 with my new cell phone plan.

And sever the link where in settings? I don't even have a Facebook app… I just access it from Safari.