How to get cellular data network on iphone 4s?

I have just purchased my UNLOCKED iPhone4s through At&t, service works, i can call. But the thing is, i can't access cellular date network, my new carrier is Straigh talk. When i go to settings>general, i do not have the option "network". Why is that? I have restored my iphone 2 times. I have talked to At&t and Straight talk people and they were no help.

What type of game do you call this?

What type of games you call where you can walk and drive around in an open-world game an have guns kill people have missions like Saints row And Gta? And are there in open-world iPhone games?

How to downgrade my iPhone 5 iOS7 to iOS 6?

My iphone is saying there's and activation error and i think its because i didn't upgrade the ios 7 beta to the latest one, now my itunes says "activation error" when i try to see if i can restore it or back it up, there's no button for "restore", i can't see anything from my phone's data, WHAT DO I DO! I want to restore it back to the iOS6!

Storage full on iPhone. What is Other?

I got an iPhone 4s last spring and my storage keeps saying its full. I really don't have that much on my iphone. Under settings I looked up the Usage and it says all 13.5 available gigs have been used up. I plugged in my phone to my laptop and brought up iTunes. I discovered I have 11.3 GB full of "other" storage. WHAT COULD POSSIBLY TAKE UP 11 GBS!

Complex video editing app for iPhone?

I'm looking to find an app for my iPhone 4S which will allow me to record separate videos and than compile them together so that I can watch them back at the same time on one screen, essentially acting as one video showing a collage of 2 or more other videos playing simultaneously.
I can't be sure that such an app actually exists, but if anybody knows of one that will allow me to do this could you please please let me know!

Computer virus help, multiple trojans, adware, etc?

Yesterday I was trying to find software that would help me jailbreak my iPhone. Big mistake.

I saw a youtube video and there was a link provided. I was about to download it when suddently I got this window that said something about unzip, and quickly noticed that it was a virus.

I ran malware anti - malware, then hitman - pro, I also used Avast! And all of them showed that I indeed had downloaded trojans, adware, and some other nasty stuff. Even my firefox browser re directed me to delta homepage.

Even when I ran those three softwares, I still got this popup that said something about backing up my computer. I had to manually uninstall it in safe mode (not sure whether this was a good idea)

I also downloaded combo - fix in the end, and it kinda messed up my desktop but now it seems computer works fine.

I want to know whether there's something else I could do to make sure that there's nothing else that could be hidden. Any ideas?

Added (1). No. It was on my laptop. I had to download a software that would help me jailbreak my iphone. Got the virus on my laptop.