Great, thank you. We don't allow .sav files at the forum because they are so large. If you .zip the file first it is only 100k big and then it can be uploaded.
Do you have a PPC or Intel processor? The idea with the bug so far is that it might be a PPC specific bug so if you have a PPC then it's closer to solving it
There is an easy fix you can do:
You can open the save with TextEdit, and search for airlockdoor01 & airlockdoor02 when you find one of them if you look down about 22-25 lines there is an entry called
<class type="cEngineBody_SaveData" and below it an entry name="mbCollideCharacter" following that is val="true", change that to false instead of true. You will have to do this for both airlockdoor01 and 02 and then save the file.
Load the saved game and when you go to the doors they will be visible but you should be able to walk through either the right or the left part of the door.