This is a great script and I absolutely love it and find it very valuable. The only problem is setting it up. It would be nice, but probably not possible, to change how users setup of this script.

This works great! Thanks a lot!
It was the first script I ever installed, and at first I was somewhat confused, so I'll post this as a small guide of what to do for new users:

This script classifies in rows your tags in remember the milk.
Lets say you use ! for locations-areas, like !home, !neighbourhood, or !work.
For them to be classified apart, this is what you need:
1-Go to Greasemonkey, select this script, click edit.
2-Scroll down in the part labeled Begin Configuration until you get to var sections.
3-There you see a number of predefined lines. You may use those configurations.
4-To make a new one, hit enter after any line(return on mac) and write
{prefix:'!', name:'!__locations', color:'green', hide:false},

(do make sure it is TWO underscores!)
5- It always needs a comma at the end EXCEPT if it is the last line, in which case it wont need it. If you are writing the last line, dont forget to put a comma after the "previous last line". Also, make sure to save the text file.
6- Now go to Remember the Milk, and make a new task called whatever with a tag that reads literally !__locations
(aka exactly what was after name:' and before' in the text file).
7-Wonder at the results!