What a great post with 0 new information.
The rips/conversions at MirSoft are not good, the music was originally written in MultiTracker, not ScreamTracker, so it would make more sense to get the original MTM files
But given that Wodd wants to extract the sounds, he most likely already has the music because OpenMPT can already open the PSM files that ship with the game.
Back to topic, you can load SOUNDS.DAT as a RAW sample into OpenMPT (8-bit unsigned mono) and extract the sounds yourself, or reverse-engineer the file format to write your own extractor. From a very quick look, it looks like the offset for each sample might be stored as a 32-bit integer at the start of the file.
Many games of that time have simple uncompressed 8-bit or 16-bit PCM samples stored in custom data files, so you will probably be able to extract them the same way in those two other games.