I said you should follow the first three pages of that tutorial, not the whole tutorial. The ISPconfig instructions come at the end.
<embarrased cough - ahem>
Guess I should try reading for comprehension this time, eh?
Thanks for the help on this. I noticed that I'm now getting filesystem errors, so it looks like I'm going to have to reformat and start from scratch. This time, just the first 3 pages of the tutorial, answer the questions better so I don't get a startup challenge passphrase, etc.