I am pleased to say that the wireless worked straight off with Fatdog64 630rc2. I have also persuaded it to run live off a usb with small initrd, pmedia=cd in the syslinux.cfg and the Fatdog sfs on the hdd. It boots just as fast as Precise.Firstly I have Precise running quite nicely on my newish HP Pavilion 4108au laptop, which is plagued with a Broadcom 4313GN wireless card. I thought to give the 64bit pups a run, but both Fatdog and the beta Lighthouse don't like playing with the Broadcom wireless.
Although it found and set up the wireless first off, it seemed that sometimes the browser would not get on the web, although I could ping websites ok. I did the small changes as suggested in the FAQ for Broadcom wifi, and it still works ok, and at the moment my browser is talking to the web. Maybe a glitch in the wires at my end - we'll see what happens in time.