Cheers for the tips m8. Its working, although I have an dual n-band wdnr3700 it is connected via 54-g mode to an internal wifi laptop the wdna3100 n-band dongle is not loved. Its speed is 19-20Mb/s 2/3rds of what I get on a wired connection.
The other laptop is connected via wdna3100 usb dongle to the superhub and is getting 4.5Mb/s, I have tried 5Ghz, 2.4Ghz, in combinations with up to 300Mb/s and up to 144Mb/s. I'm not sure why this is so slow possibly because of the laptop. It was ridiculously slow with the virgin pc guard software, now its gone but its still slow, dual core 1Gb ram. Compaq evo n1015v
http://techreport.com/articles.x/4672
I just updated the drivers from v1.7 to 3.0x for the wnda3100 and I got 6.4Mb/s / 1.00Mb/s.