Use a desktop or borrow someones machine to configure the router??
You could try accessing the router via wireless, however, some routers ship with the wireless defaulted to off!
If the wireless is on, you should be able to access the router, but be careful as you can paint your self in the corner during configuration if you are not expierenced!
The good news is most wireless routers have a physical reset button to reset the unit to default if you get painted in the corner.
JamesO