Wonderful hack, thank you!
A few suggestions ..
"View next/previous post in thread" links .. perhaps just << and >> links to enable a whole thread to be read from the forumdisplay page
Quote/reply buttons .. which would take you to the advanced post page
Ability to edit the number of posts to show in Admin CP .. so instead of just one, perhaps 2 or 3 etc ..
Ability to pick "First unread post" in the Admin CP as well as "First post" and "Last Post" ..
Edit button (if poster) .. yes I want the world!!