I went searching for this to see if anyone updated it for UBB.classic 6.7.0, and I just saw this version.
So I pulled out my multihack file I used for the 6.5.0 board, and I saw that I just had to change one piece of instruction (just what was searched for, not the actual code itself) ...
Anyway, I like having this modification, so I did an updated text file of it ... with all credit for the mod working correctly to Allen and Brett ... if something goes wrong, blame me!
Here's the text file -->
page index Here's an example of what the mod does -->
Example of Page Index