You might have to. Not many B-type routers support WPA. Check the router manual to see if it's capable of WPA.
If you want to use wireless connection yes you need a wireless adapter.
no
If you want to use internet wirelessly, yes you need a wireless router and a wireless adapter for your PC (usually laptops have it).
You will need the Xbox wireless adapter, an installation disc, and an Xbox. Install the software onto the machine and plug the adapter into the USD port to install.
If you are talking about building of wireless network. Then you need a wireless router and a wireless network adapter (if you have a laptop you might not need it). If you have a desktop you rather will have to purchase a wireless network adapter. Pay attention to what kind of wireless network you are going to build. It can be a, b, g, and n types.
you first need 2 buy it then you put it in ds. then if your game has options or wireless connection options or something like that you go to it and click a folder that says ready and its gonna update wireless
You can use router of G or N type and the same type wireless adapter. Of course you can use wireless N adapter with G-type router and reverse.
You can just disable device, there is no need in disconnecting the G adapter.
internet a wired adapter (comes with xbox 360) or wireless adapter (I like wireless) electricity
your need a xbox adapter from game for around £40
You don't. If you have the new Xbox 360, you don't need a wireless adapter because it has built in wifi. But if you have any other Xbox 360 console then you will need a wireless adapter.
Not all computers include a device for connecting to a wireless network, so you must purchase an adapter to add that functionality.