So your gateway address is 10.0.0.1
What you need to do now is use your browser (firefox or Internet Explorer, or Chrome) and type http://10.0.0.1
into the address bar.
this should give you a login page.
I'm not sure what the default password is for your router, but I'd type admin/password first. then admin/admin, then I'd just call the tech support and ask them.
once you'd gotten into the router, you should see a load of details about how your connecttion is setup.
the user name that's used, any settings for how the line is configured.
you'll need to write these settings down. thn plug in your new router, and copy the settings to this router.
then once all the settings are correct your new router should start working.