crawing for content on port 8080

[Moore, Lee C]

Hello,
 
I would like to have Nutch crawl web sites that are on ports other than
port 80.  So, I changed the regex-urlfilter.txt file so that it would
allow an optional port number on the URL.  I see the URLs with high
ports show up as candidtates from my seed list but they aren't actually
fetched.  Would anybody be able to help me to understand what I might
do?
 
thanks,
 
 Lee