No button on Linksys Wireless Router

Hello,

I have a Linksys wireless router connected to my hope desktop PC. I am now attempting to install a USB adapter to my laptop so I can use the internet on the laptop. In the process of installing the adapter to the laptop it tells me to push the button on the wireless router (I guess to send a signal) however there is no button on the router. My router is model WRT54G. Does anyone have info on how to complete this part of the process when there is no actual button on the router? I tried to complete the process anyway and it doesnt pick up a signal. The only button is the reset button but I dont believe that is what they are referring to.

Any help is appreciated.