If you ran uniblue and it messed up the PC, then there isn't a problem with the laptop per se, is there? Wouldn't it be better to have the Homehub be independent, as router and a wireless hub instead of having the net connection go to your pc, then your homehub and then, consequently, your laptop?
It sounds to me like the Homehub's wireless is either disabled, or it's been reset somehow. I would try disconnecting the hub from the PC, and plugging it in on it's own (phone line and power) and then resetting the thing using the supplied instructions. From there, you can get the wireless back up and running without having to use your uniblue'd PC as a middle man. If you need to connect with wires to the hub initially, then just use the network cable from the PC between the laptop and the hub to configure the settings if need be.