I've been digging through Ambrosia's ftp server with a fine-tooth comb and have found that the reason the files Violent Sounds and SWA wont download is that the Type Sig. is screwed up. After a little bit of experimentation, I've come up with a procedure on how to get the files to Download and work.
If you click on the Download link and it pops up a page of gibberish, then:
Step 1) Option-click on the download link for the file you want.
Step 2) When it asks for a location to save the file, select the desktop.
Step 3) It will download and say that it's a type " " file. Don't panic, just wait.
Step 4) When it's finished Downloading, drag the file (which is labeled as scenerios &file;=Violent%20Sounds on the Desktop) on to Stuffit Expander and it should be able to decode the file (if not, treat it like a .sea file, and open expander, then decompress manually)
Viola! If you are having any trouble with any of my files still, don't hesitate to email me.