ok thanks to some help in the mapping section, I managed to get my cellar door model to appear in HL2. Though now its physics don’t want to update when it plays the opening animation.
Here’s a picture of the problem:
As you can see here, the model’s physics didn’t update to the open position,thus allowing me to place another model right inside the door, but not in the doorway.
If you think you can help, let me know and I can send you the files.