Unfortunately, I bought it based on reviews that I'd read and didn't realize I could buy it right from Matrix, so I had purchased it through an Amazon (Re)seller. Hopefully the bulk of the money goes to you guys and the creators!
I won't make that mistake again.
I played the game last night using Quick Combat - Basic Game and had no problems, despite the missing sound files. I assume it would be Detailed Combat where they'd be used, judging by the .wav files before and after.
Had a fun couple of hours with the game and realized how little I understood the mechanics, but I'm starting to get it. Erik, I emailed your support and got rapid, knowledgable, and friendly responses, even though I didn't buy it in the right place. He/She emailed me the sound file I was stuck on, but I am still missing fifteen of them. I asked him/her if it would be possible to get the rest, but I'll understand if it's against policy. I'd hate to go back for a new disk for a few sound files (cost of shipping).
I'm typing all this in case someone else reads before they buy - buy it directly from Matrix!
Gil, thank you, too for the response. Like the community/company here already!