Thank you for your compliments. I'm delighted you (and perhaps your students) are enjoying the educational journeys through Celestia space.
Celestia 1.4.0 is similar to FT 1.2 and the instructions for modifying the Activities to use FT 1.2, will also work for version 1.4.0 final. However, version 1.4.1 is coming out in a few days. It has some important bug fixes that are present in 1.4.0 final. There is also an exciting new version of Celestia 1.4.1 that incorporates the ability to display a spaceship cockpit on the view screen, and play sound internally from within Celestia. Both of those features are so exciting that I am modifying all of my Activities to incorporate them. Once done, you will not only be able to go into space in the Celestia 1 spaceship, you will also see its cockpit controls lit up in front of you, and hear its radar pings and the roar of its hyperdrive engines coming on.
I will be updating all of the Activities on the Motherlode to use this special edition of 1.4.1. I expect everything to be done within a week or so.
If you can wait that long, and assuming version 1.4.1 comes out within the next week, look for an announcement on the forum about my updated educational activities. I will send all the updates to Motherlode for posting as soon as done. I will also upgrade my CD set to incorporate these changes, should you wish to buy the CD set and have everything self-install in one easy step (no laborous downloads). Should that interest you, send me a private message or email and I'll give you the details.
Frank
Perhaps during that time someone would be willing to fill in for me in getting an OS X version of Celestia-ED ready. I can still provide instructions on how to patch and compile a package.