The current Steam version of the game differs a bit from the original 2006 (non-Steam) release, in that a number of events involving alternate outfits and decorative items were removed during the upscaling process. However, some remnants of these events had previously slipped through the cracks, leaving incomplete pieces of content behind that were causing some confusion to players. These "content shards" have now been properly removed from the game.
A scant few events which previously required usage of these disabled outfits and decorative items have now also been retooled to be finishable without them.
In short: The game should no longer trigger any content that is unavailable, but nor should it refrain from triggering fully intact content due to unrelated events which are unavailable.