laptop from one of the router ports. On your internet explorer page type in 192.168.1.1 this will forward you to the router type admin on both boxes. Then check the settings on the security reset new password SORRY, but I don't know anything about computers. Please be a little more basic Please!
Computers & Internet - Linksys - Wireless-G WRT54G Router
Answers & Comments
How does your Daughter's computer connect? You state that yours connects directly, does here's connect via wireless connection? If so, then you'll merely need to view wireless connections with her PC and select your Linksys router and click on the connect button after which you should be prompted to enter your passkey/pass phrase to connect to your network. If you cannot remember the passkey, then do as suggested above and reset your router to default settings by pressing the reset button for 10 seconds or so while it's powered on and that should reset it to default with no security. Just make sure to enter the address 192.168.1.1 to address your router and re enable your security. I believe the default User Name is Liksys, and Password is Admin for your WRT54G Router.
Good luck.