Computer crashed, need to figure how to transfer iTunes files to a new PC?

I'm an iPhone 4 user, was previously using Windows XP. At that time, I was updating my IOS from 5.1.1 to 6.1.3 after I backed up my files in iTunes, then my house had a blackout. PC crashed, iPhone need to connect to iTunes. The hard drive was still working so I salvaged it.

Recently I bought a new CPU, and put the salvaged hard drive as my second drive on my new PC.
The windows of my new PC is Windows 7.

My question is, how do I transfer all my apps and iPhone applications to my new iTunes?
Music and Videos are easy, but the applications progress is what I want at the moment.
Especially my twitter app, the accounts in there, I want to salvages them and all my messages.

In other words, I wanna restore my iPhone back like there wasn't a blackout in the first place.
My iTunes is version 11 for both Windows XP & 7.

Which color stands out more?

I have a black iphone 5 which otterbox defender case stands out more best answer 5 points!

1.http://m.otterbox.com/iPhone-5-Defender-Series-Case/apl2-new-iphone-5, default, pd.html? Dwvar_apl2-new-iphone-5_color=20&start=3&q=iphone-5-defender&gclid=CKSzpKjZwbYCFQQEnQodD2gA5g

2.http://m.otterbox.com/iPhone-5-Defender-Series-Case/apl2-new-iphone-5, default, pd.html? Dwvar_apl2-new-iphone-5_color=20&start=3&q=iphone-5-defender&gclid=CKSzpKjZwbYCFQQEnQodD2gA5g

Could I buy an iPhone and use it as a pay as you go phone?

I currently have a GalaxyS Captivate but I'm thinking about buying a iPhone 4. I'm already an AT&T user and don't plan on changing that. I pay $50 for unlimited talk and text. I can care less about data. Would I be able to pay just $50 a month for unlimited talk and text for the iPhone as well? Or no? If not, how much would I be paying a month for unlimited talk and text?

IPhone being weird, how to reset?

Yesterday I wanted to update my iPhone so I did it without connecting it to iTunes. Since then it has been showing the Apple logo in front of a black background, then the screen goes completely black and just repeats. I tried to hold down the home and power but nothing happened. When I try to connect it to my laptop it doesn't show up in iTunes. Does anyone know what I should do? I have all my stuff backed up so I'm willing to reset it to factory settings.

I really would like to know what will happen?

What would happen if I got an at&t iphone 4 for like 0.98 cents with a 2 year contract and an activation fee and I only got the phone and didn't pay the fee or the bill? I'm just curious cause I really just want the iphone haha

If you find someone's laptop or Iphone and keep it, is it stealing?

I just came here so I can get an answer faster. Ok here goes, I needed a new laptop and recently got one. I just got it maybe 3 weeks to a month ago. I saved the serial number and model number paper and everything, thankful. Anyway I was at my university one day and had a lot on my mind, and I accidentally left my laptop in my class. I didn't realize it until I got in my car and was heading to the store.So, I turned around and wentback to the class room, not there. Then I went to lost and found and this lady was nearby and overheard me talking to the lady at lost and found. This nice caring lady thankfully asked me about it and what classroom it was in, then told me she saw her teacher pick it up. She told me the teacher's name. Then I had the lost and found lady call her. I tried to call her and no one picked up. The next day, I filed a police report and then I got a call back from the police officer saying I can pick it up at lost and found on campus. I picked up my computer and everything that was originally on it was gone. The computer was wiped clean. Is there a way I can press charges against this teacher for hacking my computer, and even though she found it, is it still stealing since she took it home and tried to keep it? Also if she reset my computer, does that mean she had access to my personal information? I did have a password on my computer, but I guess that doesn't really protect anything. I also did have a guest account, so that friends or family can use my computer when they come over if needed. How can I get proof that she hacked my computer and reset it, and what are the penalties for her?

Can you locate an iPhone that has been turned off?

I have an iPhone 4. I think it has been stolen. I there a way I can track it and it is off? I also want to know if there's a way outside of using "Find My iPhone". Can AT&T or Apple track it? Will there be a cost if they do?