I tried all of the ones from Creative they just didn't work. I took me a while to find it backed up in a tape drive. I hope it works for you as well as it did for me. I even added some wavesets the driver software asks for.
The following files are found inside the driver download file.
|E128UP9X.EXE||780.7 KB||4 Nov 1998|
|E128UP9X.EXE/DISK.ID||68 bytes||25 Sep 1998|
|E128UP9X.EXE/FILE_ID.DIZ||1.1 KB||1 Oct 1998|
|E128UP9X.EXE/LICENSE.TXT||15.7 KB||22 Jun 1998|
|E128UP9X.EXE/SETUPEX.EXE||810.1 KB||25 Sep 1998|
|E128UP9X.EXE/SETUPEX.EXE/LAUNCHER.EXE||143.9 KB||30 Jul 1998|
|EAPCI2M.ECW||2.3 MB||1 May 1998|
|EAPCI4M.ECW||5.0 MB||25 Feb 1998|