I have a linksys wrt54 g router and cant connect to the kindle

If you look on the Kindle's Home page, it should show a battery on the left side. There should be a ramp of bars to the left of the battery showing a few darkened bars and to the left of that the word Wi-Fi should appear. If it does not appear, does the word "off" show to the left of the battery icon? If yes, select Menu and Turn Wireless On. If neither of these appear, then the Kindle might not support wifi. If you have never been able to connect wirelessly anywhere with the Kindle, then you probably need to get in contact with their help desk. If you have been able to connect to wifi before, then I assume that you know how to use Menu to select Settings on the Kindle from the Home page, select the wifi from the list and connect to the wifi of your choice using passwords etc., so your problem is with the router and you would have to troubleshoot that. Does wifi work with anything else, etc. One thing you can try if the Kindle has previously worked on wifi is to press and hold the on button for 20 seconds to cause the unit to reset. However, if the wifi isn't working, I think this will make the Kindle unusable because I think it reloads a bunch of stuff from the internet. The Kindle user's guide should describe what to do and whom to contact.