Brad Choate has a hack to do paging using PHP on long entries. I know it's posted on his site (bradchoate.com), and I *believe* he also posted it here. Somewhere.

I have looked and looked for a thread that covers this, but can't find it.

I'd like to have really really really long entries --articles actually -- go acress multiple pages. anyone got a hack for this?

That was the clue I needed.
http://www.bradchoate.com/past/000183.php?page=all