thanks for that orainsear, but it doesnt work ... tried it a few times today...
anyway .. sussed it now, when the upgradewizard is run, it has to have an exact copy of the firmware which is already installed. my router didnt have a version number for some reason so i grabbed a ver from netgears ftp which was a sky ver for the 934 which flashed ok but its still a sky.
then followed the instructions as before but still stuck on device list being empty. changed nic to 100mb half duplex and it then found the router, swapped the firmware vers to an 834 and clicked upgrade - first bsod seen in win7 !!!
rebooted and ran in compatibility xp sp3 mode and it worked.