How to switch from iPhone 4S to 5?

Okay so my dad bought the 5, he said he would trade me for the 4s and $100. What do I have to do to switch? The SIM cards are different sizes, and I'm with AT&T.

Where can i print panoramic photos?

I got my iphone 5 in september, and i've been taking a lot of panoramic photos with it when i go out to places. (beaches, parks, woods, cities) i have a lot of pictures i'd like to print somewhere.could i get it printed on snapfish? I can't find it. Or can i go to cvs or something to get it printed? I'm not thinking like 10 feet. Maybe like 1 1/2 feet wide and 8 inches or so high.

Problem with the upgrade on iphone 4s?

I and my partner have the iphone 4s and have since upgraded through iTunes to the new 06 version. Its not bad but dot sure why on the old version I could buy an app in the app store and send to someone else as a gift… Now with new version ya can't do that… Why? Unless there's some other way I don't know about that someone could point out would be great!

How to download installous on my iphone 2G?

I got Cydia and i got ios 3.1.3. The only available installous is Installous 5. If its no possible to download that, is there any other app that is like Installous? If so, how to download?

Ordering from Best Buy online?

I was thinking of ordering something from Best Buy online. I'm not going to use my desktop PC to order my best buy product, I will use my iPhone 4 to order my Best Buy product. Is it an ok method to use with the iPhone app? I sometimes experience app crash in the check out options.

Is it better to call verizon customer service or go in the store?

I want to get the Iphone 5, i currently have the piece of *** Droid X that has recently broken. By broken i mean the screen has black dots from dead pixels. The phone also randomly shuts off and lags. I have got 3 replacement (Droid X) phones already and constantly contacted verizon. My upgrade is in January, but I don't want to wait. Will verizon let me upgrade if i'm 20 of 24 months in my contract? Is it better to call customer service or go in the store? What else should i do or say to get them to give me the iphone 5? Help!

Added (1). Really my choices are:
A: Iphone 5
B: Iphone 4s
C: Samsung Galaxy S III
What do you guys think i should get and why. Your responses will be greatly appereciated and taken into consideration on which phone i will get.