Actually, WOL 4.0.0 is is strict compatible so you DON'T have to uncomment that line. You may want to watch out in styles though as there have been some changes. Make sure you follow instructions carefully.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.