You may download games straight from your iPhone using the App Store. You may also download games from your computer using iTunes.
To download iTunes on an Xbox 360, you actually can't, as iTunes is not available on that platform. Instead, you should download iTunes on a compatible PC or Mac. Once installed, connect your iPhone 4s to the computer using a USB cable, open iTunes, and follow the prompts to reset or restore your device.
Normally when you register your handset, you also register for iTunes as well and you are normally provided with a prompt to download the latest version of iTunes. If this has not happened, then go to the iTunes website or search for iTunes using a search engine, then download iTunes and sign up for it that way, once your application has been launched after the download has been completed. You can also go to the iTunes website and sign up there without downloading iTunes to your computer but if you have an iDevice it's always best to download iTunes in any case.
Yes. If you update your iPhone's software using iTunes it will lock your iPhone again. You will then need to unlock it again.
Yes, iPhone is capable of doing this, as long as you have downloaded iTunes from Apple.com (free) and have the included usb dock for your iPhone.
Yes
its asking for you itunes password you must create an itunes account on computer using itunes
Using the usb cable it comes with you connect it to your computer and open iTunes. From there click "Update" and it will download and install the newest iPhone OS version for you.
Itunes and Amazon both offer download services.
An Ipsw is the firmware bundle downloaded for your iphone eg. 2.2 3.0 you can download firmware bundles from the internet or if you updated the iphone using itunes (windows) then go to \Documents and Settings\[username]\Application Data\Apple Computer\iTunes\iPhone Software Updates
you might be able to download it via a bit torrent but im not to sure.
To upoad to the ipod, yes, but you can retrieve music from anywhere to place on itunes.