Well the crappy Sky Router has annoyed us enough.

I was wondering if anyone knows how to get a BT voyager 2100 working on sky broadband. The router is unlocked as it was bought privately not through an ISP.

Easier to contact sky, you'd need your access username password for the router to access sky...
But its against their TOS to use a different router..
See Here

Im with sky also but TBH i've had no problems with their router, Infact im using both the new Sagen router as the main router and Im using the old sky Netgear one as a hub in my room for some extra wired slots for PC, Xbox, Laptop etc

we gave up. Even with ADSL user name and pass the voyager couldn't connect. It seems to have taken the hint now and is *touch wood* working.