I think it's a very good script. It's the best highlight script I've seen. Well done.
I just wish there was an option to activate/deactivate the color selection, as it causes some errors with certain irc programs (Highlighted line is diplayed twice)

I am using AdiIRC. So I tried to load that script and it worked, but I'm unable to add certain rooms where I don't want the script to work.

Please help me out, as it is a brilliant script!