Downloaded iTunes, now none of my downloaded apps are working?

If it helps, I have an iPhone 3GS. I'm not sure exactly what I clicked on as I can't remember but none of my apps are saved on iTunes, either.

1.go to appstore.
2.go to the app you bought.
3.it will say would you like to buy.
4.hit yes.
5.login.
6.it will tell you its free to update as you have previous version
7.repeat steps 2-6 until you get all apps you had.
8?
9. Profit

  • Why won't ny iphone let me change my payment method to none? I tried changing the country but it wouldnt do anything and i also tried doing it from my computer on itunes and keeps telling me to put a valid paying method and i don't want that i just want no credit card and i can't get any free apps either because for some reason it still says even on free stuff to fill out the correct billing information
  • Why does my iPhone say I have 11 emails and I have none? How do I get rid of that. When I get a new message it says 12 then when I delete goes back to 11.It's annoying. How to I get it back to 0?
  • What none slr camera is best for indoor concerts? I go to a lot of concerts at small venues, I have good seats (season ticket holder) and I would like to start taking some photos. What camera would be good for this? Tried my iphone but all the faces are just white with no detail. Any suggestions?
  • None of the apps on my iPhone are downloading anymore? I have an iPhone 4s and none of my apps will download or when i try to update the ones I already have, they don't load either. It just keeps giving me a message that says "Unable to Download Application. (whatever app I'm trying to download) could not be downloaded at this time." I have tried shutting my phone off many times and even deleting apps to make sure I don't have too much. Not sure what else I can do.