>>1
You should try to search the ubuntu forums ( http://ubuntuforums.org/ ) for your Wifi stick model, or ask your question there, the guys there are very nice even to complete beginners.

Generally, it will be pretty hard to help you without knowing what kind of USB adapter you have. If you don't know the model name, execute "lsusb" in a console window while the adapter is attached and post the results, lsusb will give you a list of all USB devices attached to your PC.

Post the lsusb resluts and your USB adapters name here and I'll try to help you.

>>2,4
Care to make a "OMG LUNIX SUX AND USE REAL UNIX" thread for this instead of hijacking other threads?