I was using MAMP to turn my computer into a server - so I could set up the Joomla site and test it out before going live. Eventually it'll go onto the school's Mac Server OS X server.
After MUCH aggravation and several different tutorials I finally got MAMP and Joomla both up and running. Apparently all I needed to do was set up a database. Do I feel stupid? Yes.
Oh well. Live and learn.
Now I just need to figure out how to run the back-end of Joomla. There's a guy at work who says he's worked a lot with Joomla and he's offered his assistance. I'm taking it! I only have so much patience and I've got to save most of it for the kiddos.
Froyd: Thanks for the input on MySQL. I'll go a hunting :)