After a slight glitch, this script works great! I cannot understand why google doesn't want to do filters right, but Ming has stepped up and added the functionality we need. Thanks!

I have installed this script on 4 machines, all running win xp Pro and firefox (all latest upgrades). Doesn't work on any of them. The filter assistant button shows up, clicking on it brings up the filter pane, but when I choose an option and click on create filter, nothing happens. if I do not select an option, clicking on create filter brings up an error message saying at least one option must be selected. I have tried everything I can think of.