how to connect to the internet with my kindle fire
no
yes it does
Yes.
no
I am assuming you do not have the Kindle Touch w/ 3g built in: You will need an active internet service A Wireless router A Kindle Touch That is all you need.
no, you need WiFi for internet connection
3G for Kindle is the 3G service, known from smart phones, 3G enables you to have internet wherever you go. So 3G on the Kindle means you can take your Kindle anywhere being able to download book, browse the internet, etc.
Storage via the internet.
No - the Kindle uses Wi-Fi to download content from the intenet.
Yes - there are free downloads of 'kindle for PC software' on the internet.
To get books on your kindle or kindle fire, hook it up to the internet and buy the books on-line. Wait for them to download then enjoy.