OK, moving along here as urs suggests...
This may help, or may not.. whatever.
This only works if you're having trouble getting connected to G1
I connect fine with G2.. but..sometimes when I've not been on the network for a while, I get the firewall warning simply because G1 hasn't connected
Shareaza reports it as a firewall problem, but...
Pssst... it's not...
Your G1 Host Cache is empty.. so...Hit F9, right-click one of your GWebCache's, then hit F8.. check to see if you get any results in the host cache window.
Try a few if you don't get any results
If you do get results, disconnect, then reconnect, and you should get G1 Ultrapeers