Yay, this works for me! I was having the same problem as cbreezy2010, every time I clicked the explicit.js it would open wordpad. The second fix you posted worked like a charm. The only gripe is, that I have to do songs one at a time. When I try "send to" with multiple tracks, usually only one of the tracks gets the explicit tag. I'm guessing that the first fix posted allows you to label multiple songs explicit at one time? Oh well, it's a minor setback...I'm just happy I'm able to tag tracks I've imported with CDs now.
Thanks!
Perhaps you could build an automator script for it?