I may have stumbled upon some good info. Sorry again if you are no longer interested in this, but here goes. I searched the wayback machine for the year 2000 or so website and found it. I just started looking around and found a link to source code. If your interested, try the below link, otherwise go to Archive.org's Wyback Machine and enter this URL: http://www.efn.org/~dungeon/
The following URL is the link from the wayback machine. https://web.archive.org/web/20060424045124/http://www.efn.org/~dungeon/ It appears the website was up / active until 2007 or so, but the last saved version is from April 24th, 2006 on the Wayback Machine.
There was a link to his personal webpage which is also gone from the live site, but on the archvied version is his resume with address and phone number. If your interested, here is the link: https://web.archive.org/web/20110208194608/http://www.efn.org/~caruso/
This might be his current email address: dcaruso3@wi.rr.com.
Hope this might be useful. I still hope to one day see the PC version or a C64 version with fixes.