So i want to transfer all my files from my old iphone 3gs to my new iphone 5s but idk how. Plz help.
Take a look at the link you tagged.
Apps should be in your itunes library, you sync them back to your phone via itunes.
Go back and read the support document that you linked to the forum with. That should explain it to you.
Follow the instructions in the article you asked this question from, and if needed, these ones.
Retrieving data ...