No track index in iTunes SB?

FROM : slasktrattenator
DATE : Mon Mar 10 12:56:33 2008

Anyone know how to get the index of the current iTunes track using
Scripting Bridge? With Applescript, it's as simple as "tell iTunes to
return index of current track", but iTunes SB has no such property
(well, there is one, but it only refers to the index of the current
playlist). It seems the iTunesTrack index property is simply
missing...? Or am I missing something?