There are many things involved with making a wireless network function correctly and efficiently. There are a great many websites out there to help you with these tasks. We will now provide you with a few to help you along the way.

If you would like to find out just what Wi-Fi is, here is a good site to explain it all to you: 

http://computer.howstuffworks.com/wireless-network.htm

If you are needing help with setting up your wireless security, here is a set of videos that will help you along :

 http://reviews.cnet.com/4520-11334_7-5512709-1.html?tag=nav

(you do not have to use the equipment they show, as long as the equipment you purchase meets the requirements)