You can manually add the items back in to your inventory by looking up the Object ID's in the construction set and consoling:
player.additem object id quantity
You can also find the id's by looking the items up on the http://www.uesp.net/wiki/Main_Page. http://www.uesp.net/wiki/Oblivion:Items a good place to start.
Thanks.
Thing is, there was A LOT of stuff in this particular container. I was hoping for something less manual.
I know this is a long shot, but what I really need is a way to save in game items to a file and a way to read them from that file into another game. So then I could load my old game, copy all of the items from a particular container into a file, load my current game and load all of the items from the file into the same container.
I don't suppose there's anything like that available, is there?