no problem, thanx for the reply.
I did re-read the getting started guide though, and this time spotted this in the configure network parameters section where it describes creating the pool:
"Do not select the Enable IP Pool checkbox and do not specify a range of IP addresses. You specify the
IP address for the virtual machines in the vApp using the vApp OVF Deployment Wizard."
Weird - and it worked. Not sure why we need a pool in the first place, then. HMMPH