Well, they actually do apply, the router is built into your DSL modem but that doesn't mean its not there. Can you access the router home page in the modem? That is the one uniform thing that you have to be able to access from the start.
Is your wired machine getting an IP address and connecting?... I'm assuming that it does, you're posting here. Can you access the DSL modem/router home page? Get the Router number from the TCP/IP panel of the Network pane, and try typing that into your browser (might have to use IE for that, sometimes internal webpages in PC-centric equipment isn't Safari friendly)...