But all I offer are guides. No step by step or detailed replies. BUT THERE IS A SIMPLE WAY I could accomplish your goal.
Read http://forums.cnet.com/5208-7589_102-0.html?messageID=2754854&tag=forums06;posts#2754854 about how to use a wifi router as a Wireless Access Point or WAP.
Routers cost from 20 and up and I would be done.
The following is how my internet is set up in my house...
I had my house prewired with CAT 5 cable to 8 different rooms/locations in my
house on different levels. Each location/room has a wired cat 5 outlet to hook up to a computer if needed.
The outside cable comes in my basement and is connected to my modem. My modem is connected to a netgear switch which has the 8 wired cat 5 wires going to the different locations throughout the house. On the main level of home in my study on the far end of my house, I have a desktop. I have a Cisco Valet plus router which is wired directly to my desktop and then provides my wireless signal for the other laptops for my kids which has rooms on the upper level. However, on the other end of my house where my son's bedroom is located, there is not a strong enough of a signal for him to be able to surf.
Now my question is what is the best/easiest way to extend the range of my wireless signal.. I have a netgear or linksys modem(can't recall which at the moment) and an airport extreme wireless router. Can I connect one of these up to a location upstairs with the cat 5 outlet and use it as an additional hot spot or access point? If so, does it have to have a special configuration and can you explain in detail how to do so? Or is there a better or easier way to accomplish the same purpose. I'm not by any means a computer tech guru but usually if given specific detailed instructions can figure it out. Thanks for taking the time to reply.