First of all let me thanks the guys who did this, THANKS!!
I have a mac, I downloaded python and when I went into a term window, I could type python and it would find the program and go into it. I tried the command line and couldn't get it to work. So I decided try the plugin method. I downloaded the mobidedrm, copied the script into it and named the file mobidedrm_plugin.py, zipped it and added it to the plugin into
Calibre, I then customized it with all my PID's from the Mobipocket Readers site, and it worked PERFECT! When I added the file to my library there was no error, and then I had to run the convert tool, and wah la! And one of my PID's have a $ in it, I didn't have to do anything. I just put them all in separated by a comma.
Thanks Guys.