You login to your router (usually goto IE and in the address bar, goto the address in your manual like 192.168.2.1 or 192.168.0.1).
It will bring up a webpage that is coming from inside your router with all the settings for it. It should be pretty simple for anybody to use, just look for the part with wireless security or passwords, etc. You want to set up the highest strength WEP password you can. Then in the wireless connection settings in windows, you have to repeat the same thing you put into your router when it asks for the key.
As for teaching how to drive, do you have a standard car, I've wanted to learn how to drive stick since I almost drove through a wall in highschool. None of my friends ever had one for me to drive or learn.
