You deleted your LW prefs, re-checked your firewall settings & made sure XP firewall was off, changed LW's listening port, ... etc.
Not too many options left. Why not try Phex to see if you have the same problems.
Other option is proxies .... there's many types. But it's a long process to find one that works. You need to keep trying out new proxy addresses, & also try different types of proxies. PITA

If no go, then it looks like Rogers put the brakes on your p2p use 2 days ago. Give them a call (speak to a technician) & ask them to remove the p2p filters/blockers.

BTW what did LW Pro support tell you? You have LW pro so I presume you sought their support also.