Laughs.. Some days we just can win.. I'm guessing the default
angstrom images didn't work either.. (they use 192.168.7.x too..)
Anywho, it's set in two places...
/etc/network/interfaces (which you'll probably already changed..)
and in a custom location (easy for me to push out updates), and
written to enable a bunch of things to help all the new windows