you cant
You can use an IPad 2 with no carrier at all if you only use the wireless internet with it or wifi. You can use AT&T or you can use Verizon or just wireless internet.
The iPad two if (at the time of writing) the latest generation of iPads, where as the iPad 3G is a iPad one or two that has the ability to use mobile networks to access the internet.
Yes
Which source the movie comes from ? Internet, computer, else ? If it is a movie from the internet or on the Internet, then it could be a format the iPad is not able to read, like flash movies. You can try to use an other web browser on the iPad... search the app store for that.
Yes but you should use 2 different browser, eg. internet explorer and firefox
unless you can get it from your internet from a stupid game.
You can use iTunes or other similar software or transfer your music from your computer via iTunes.
1. I need to minimize this file. 2. You can minimize your Internet Explorer thingy..??
no
Firefox is better than Internet Explorer because it's faster and easier to use. Those are the only 2 that I've ever used.
If you have a 3G contract for your iPad then you will generally be able to access the internet from any location (providing you are in range) If you only have a WiFi compatible iPad (i.e. you don't pay a monthly contract) then you will only be able to access the internet when you are connected to a WiFi connection.