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What exactly do you mean with 'install your wireless router'? There's no need to install anything in Linux to be able to access your router. You just type the IP address of the gateway (your router) in a webbrowser, for example http://192.168.0.1
and access the build in web interface.
If you mean configuring wireless networking on your Ubuntu then specify your wireless network card. Info can be found with this command:
Post the info here and we'll see if we can be of any help.