Hi again,
Yes, I know... I figure if you can work out who made it you might have a chance of finding a new part for it.
I finally found the time to check mine- looks just the same and is labelled Jensen Newcorp inc.
They are from the US:
http://www.rvtruckparts.com/ProductDetail.asp?PID=40036&SID=9&DID=54&CID=709&BID=
These guys have some parts:
http://www.rvpartscenter.com/prodselect.asp?SID=9&DID=54&CID=626
It's possible that someone imports them to the UK but I suspect not- it would be worth doing some digging/phoning round but I fear you'll have to send to the US for parts or replace the whole thing with a European equivalent like the Fiamma.
Please let us all know how you get on!!!
Cheers,
W.