OK, despite that fact that I realise that zer0share requires older versions of Waste, I decided to install 1.5b3 and experiment with attempting to connect to rushwhq.dnsalias.com:1337 anyway as this is the only machine I know that has been identified as being aware of my public key...
still no connection.
I'm starting to think it could be a hardware problem (or at least a problem that's not worth spending time debugging given the hardware changes which are about to occur at my end).
Maybe I'll' catch up with you on zer0share in a couple of weeks?
Ciao,
doofus.