I can't configure my linksys wrt54g2 v1

What drivers do you want to download?
There are not drivers for Linksys router. It works on a software called as firmware?
How many wireless computers do you have?
What is the operating system on your laptop?
If your wireless network is secured then make sure that you have the correct network key.

See How to setup Linksys router
See how to connect to the wireless network

Linksys has free product support for this type of help, call them.

This is the direct link to the Firmware update simply scroll down and under Firmware click download.
http://homesupport.cisco.com/en-us/wireless/lbc/WRT54G
copy and paste into address bar.

You don't need any kind of installation CD. Just open your wireless connection manager on the OS you're using in your laptop and connect to your wireless network.
If you need to configure the router, go to 192.168.1.1 in your web browser to open the router's configuration page.

You can download it from here,

http://homesupport.cisco.com/en-us/wireless/lbc/WRT54G2

Select XP, Vista Setup wizard download.

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I think, you can get the installer in the linksys website.

Stop using the setup disk. It does not work. Connect to your router via a web browser to 192.168.1.1. Username blank, input your password and configure the router as normal.

http://www-ph.linksys.com/servlet/Satellite?c=L_CASupport_C2&childpagename=PH%2FLayout&cid=1166859837401&pagename=Linksys%2FCommon%2FVisitorWrapper&lid=3740141396B01

Go to this site and scroll down to the section "Configuring your Router to work with Port Triggering"

http://portforward.com/english/routers/port_triggering/Linksys/WRK54G/Warcraft_III.htm

The username & password for the router is by default admin/admin.

Hope this helps