> I am trying to use Capture URL to access a site wiht form-
> based authentication. When I click on 'Capture URL', the 
> proxy's address is blank while the proxy port is set. Why 
> is this? Could this be because I am accessing the net 
from 
> behind a proxy and have configured HTTRACK to use a proxy?
No, this is a bug. Added on the TODO list (should be fixed 
for the next release)

Use your regular IP address as address (that is, either 
your internal IP (NOT localhost) or your public IP address 
if you are directly connected to the internet)