All the SWFs are archived (which is often not the case on Wayback). Just when the program is requesting to load one, archive.org is returning an HTML-wrapped file instead which fails to load. It would be quite easy to add to Flashpoint.

Managed to find them at:

https://www.pccc.com/downloads/junk/cool/bembo/

will have to look into how to get them to play again....