I am unable to connect to limewire with peer block turned on. When I turned it off I connected, but lost the connection when I restarted peer block. Has LW changed something to not allow these programs?

Version 5.5.1
Win 7
new problem
windows firewall
5 and 6- who knows? They moved and/or renamed everything in win 7 so I can't find it!!!!! If it will help and someone can tell me where to look, I will do so.
AVG free edition 9.0
cable
9. Arris CM550A and Linksys WRK54G
house
knology
USA
yes, wireless router for laptop and wired connection to PC
14.uh... huh?
updated from 4.6 to 5.5.1 because this started, happened with 4.6 and 5.5