I tried a while ago to get in touch with the last known publisher about getting the source code, and didn't get anywhere with them. I emailed a few of their email addresses, and I think I even sent snail mail, but no response. So either they don't have it, do have it, but don't want to give it out, or just don't care either way. So much time has passed now, that I expect they don't have the code, and only have the executables for distribution.