I have reduced the download from 23 megs (zipped) to 3 megs (zipped)(!)
One problem was I had placed four extra elevator cars halfway down the tape, and forgotten about them. They were old models and very high on polys.
There were also several human passengers in the cars which I obtained from a freeware site; they were much too big- so I've made a very basic human shape to replace them.

Here is the new download link
http://www.orionsarm.com/downloads/Orio ... nstalk.zip
Selden suggested that I add an empty object to make it easier to get to the elevator cars, so I have added an object called 'Elevator viewpoint' which can be found in the Solar System Browser.