Everyone note: in his sample index file, he should have used double quotes on the seccond include. It will not work without the double quotes (unless you change the code a little).
Other than that, Neill, it was a pretty decent tutorial. I would havd thought the topic to be self explanitory, but then for some people...
One thing though was your line spacing. I really think it should have been every line, though this did seem pretty on the eyes.