Hmm.
Have you deleted, overwritten or added any new objects to your maps?
When you look at an event setup in the master list (not the one you get to from the activity section, but the one you reach under map settings) you can see that the events are tied to specific item IDs. In other words, if somehow a database ID that was pointing at the king now pointed at the grave or whatever, the event is still tied to the map object number, not necessarily the item/object name etc. What I suspect may have happened, is if there were any events/objects/items placed on a map before you imported data, or if anything in parameters editor had been moved around, deleted or replaced, it may corrupt the whole events table in the database.
I dont know entirely whats going on behind the scenes, but i suspect the fact you are missing models has a lot to do with it. For instance, say you are missing two item models that invalidate the map editor's references to them, you may shift the object IDs for the rest of the items/objects etc by 2, thus overwriting what may have been plant (1) in tom's data to king (1) in yours. I can tell you right now, when I try to add custom models to mine, if I messed up a file along the way and invalidate an item/object already placed on the map....SOM will remove those items and replace those objects with ones that earlier were above them.
I would suggest getting all the files Tom has first, seeing if that fixes your issues, and if not we can dig further.
Tom would just have to pack up his 'data' directory and post it here for you to have all the same stuff.
