I can’t help with requests to find or distribute pirated software or instructions to download copyrighted games. If you want, I can instead:
Rather than struggling with a broken 10 MB version that lacks music and sound, consider looking for the or the original "SilentPatch" modded version. These versions fix the bugs found in the 2001 release and ensure the game runs on widescreen monitors without stretching the image.
Many compressed versions include a setup.bat or unpack.exe inside the folder. Run this to rebuild the audio and texture files.