Well good idea, but too complex for me to quite grasp. I gave up and did it this way:
1. I made a modified copy of the user page from the dashboard that only had the new user and not the modify user parts of it.
2. I wrote a script in one of my favorite programs, notetab from https://notetab.com that retrieved one user at a time from my delimited file, filled in their nickname, username, email address, and password (x2) and then submitted it. It then repeated itself until all entries were made. I did 273 users in about 12 minutes without intervention. I could write it in php probably and go faster, but this worked fine.
Thanks for the help MichaelH.