The EyeHome is ALIVE! Working again after a few months now without it.
The main issue was a dead power supply. I couldn’t find a spare. In the end I found that the PSP charger, which is also 5V fitted and worked.
Initially I had an issue with finding the 10.5 Mac but after changing the IP address on the Mac it did work.
As I now have an 802.11n Ethernet bridge under the TV the streaming worked really well. No buffeting or stuttering.
Now need to get the EyeHome software running on 10.6 that looks a little more complicated.