I've explained the concepts behind Reworder at length in these two articles, plus the detailed readme file. I don't see what I could possibly say in a single forum post to make it all suddenly clear. The GUI for Reworder should make it clear... all you need to know is that when you change any single word (be it through trigger scenery or whatever other action) all other instances of the same word (i.e. all those grid cells with the same number in the upper left corner) change in the exact same way. If you can't get that to happen, my guess is that you're saving levels in JCS and losing your changes. Alternatively, please post exactly what it is you are trying to do and what goes wrong -- the more specific you can be, the more possible it is to help you.