Here are some tutorials from YouTube that should help with setting up your wirless network
basic cabling
wireless security settings on stock Linksys firmware
The Linksys WRT54GL
This is the model that comes only with Linux based firmware for the network enthusiast market this model can be easily flashed with third party firmwares to unlock a host of extra features.
There are several firmwares you can choose from to try here are some of the most popular projects:
DD-WRT OpenWrt Hyper-WRT
Tomato Sveasoft FreeWRT
Here is a link to the Wiki all about the WRT54G series
If you want your router flashed with custom firmware send it to us we'll flash it and send it back
Flashing service $19.99 + shipping remember flashing voids your warranty!
I ran across this site recently that has a lot of really good info on modems and routers such as the default login usernames and passwords as well as screen caputers to help guide you through the setup screens.
They did a really great job on putting this info together and I'm sure you'll find it very usefull as well.
I just built a custom WRT54GL V1.1 for a local business, I dissasemled it and enlarged all of the cooling holes top and bottom then mounted an Evercool aluminum 60mmx60mmx10mm cooling fan inside the top cover. After reassembly I flashed it with DD-WRT firmware and upped the power output to 150mw and overclocked it from 200MHz to 216MHz Also the stock 2.5 dbi antennas will be replaced with new 9 dbi range booster antennas.
Below are the step by step pictures I took as I did the cooling mods.
Step # 1
new parts WRT54GL router AL6010 cooling fan
Step # 2
unboxed parts
Step # 3
remove antennas and front face
Step # 4
remove top cover
Step # 5
remove bottom cover
Step # 6
prepare to enlarge cooling holes in covers
Step # 7
cooling holes enlarged to roughly twice stock size
Step # 8
mount cooling fan from top with machine screws
Step # 9
nuts and washers inside to hold fan secure
Step # 10
solder fan power leads to bottom pins of DC power jack
Step # 11
fan pigtail connector through pc board
Step # 12
fan connected and pc board reattached to bottom cover
Step # 13
top and bottom reattached excess fan wire zip tied away from fan
Step # 14
completely reassembled power on test
Step # 15
finished product with hi-gain antennas and DD-WRT firmware