iMac
Looked around online. It looks like we just needed to format the hard drive. I didn't skip any steps and I made sure everythind was seated properly, so it should be good.

It sucks that without the computer, I can't get online but my best source for Mac technical help is online. Sure, I should have realized that I was going to need to format the drive, but sometimes you need someone online to point out that common sense stuff.