Called Virgin again yesterday and asked to be put back on .06 firmware AGAIN - haven't heard anything yet.
The SH has dropped a few times today already, for the sake of sanity I've plugged in 2 laptops to the hub (as well as our existing downstream router), when logging in through the external ip address using 3G and the 'remote login' details I am unable to see any of these devices connected.
http://i62.tinypic.com/2ai0tu9.png