Message Edited by summerishere on 04-14-200601:15 PM
First, take that router back and get a plain Linksys WRT54G, you wasted your money. That router uses SRX technology and the only way to get the SRX speed improvements is to use SRX wireless adapters in the PCs. The B130 with it's onboard wireless adapter is not compatible with the WRT54GX2 for anything faster than 54Mbps, the 802.11g standard. You may get slight range improvements with the WRT54GX2, but they would be slight.
Look at the installation manual that comes with the router. It's a .pdf file on the install CD. The modem connects to the router's WAN (or internet) port using an ethernet cable. The wired desktop will connect to one of the router's LAN ports. There are 4 available. The laptop will connect wirelessly. Since both PCs are connecting to the same router they will participate in the same network and will be able to share the internet connection and perform File and Printer Sharing. The desktop does not need to be wireless.
It's a good idea to have one PC connected to the router wired. All manufacturers require firmware updates be installed over a wired connection. And you need a wired connection to configure and troubleshoot the wireless part of the router.
To connect the router, power off everything. Connect the router to the modem and the desktop to the router. Turn on the modem and let it synchronize with the ISP - a minute or two. Then turn on the router and let it synchronize with the modem. Finally turn on the desktop. Once that all works move on to the wireless laptop.
"When I go to set up the laptop wirelessly, will I have to use an ethernet cable to plug it into the router until it recognizes the connection..." -- No. The software controlling the wireless network adpater in the laptop has the capability to scan for available wireless networks and you will be able to select which one you want to connect to. There will be your own network and perhaps some other neighboring networks. Simply select your network and tell the software to connect. The wireless connection will be established and you will be able to open a web browser and surf the internet. No wires.