AirBridge Total

Hi all.
I have a wireless network from my house to my nephews up the road.
I am using a AirBridge Total that uses simpleMonitor software.
I have lost the disc and I have asked AirBridge for help, hah!
I have found a version 2.2 but when I try to log on to my AirBridge it gives me a message

'The current F/W version 802.11(ver 1.4k.6) of airbridge doesn't match with the software, Do you want to change the F/W version automatically to Wireless Bridge (ver. 0.01.14)"?

I click yes and it tells me 'Invalid device type'

Before I go any further I would like to know if my connections are right as when I click 'search airbridge' it says 'airbridge not found'.
Is this because my software version is wrong or because my computer cannot 'talk' to the airbridge because of my connections?

My desktop is hardwired to my Thomson wireless modem.
A cable goes from my Thomson wireless modem to the loft plugged into a ethernet hub.
A cable goes from the hub to a antenna on my chimney.
The antenna is pointing at the AirBridge Total.

Will this allow me to 'talk' to the AirBridge?
If you understand what I am on about, give yourself a prize!!
Cheers.