I tried looking for it and could not find a folder htaccess. I tried testing my DB connection in DW and here is the error that I get, I don't know if this helps:
HTTP Error Code 404 File Not Found. Here are some possible reasons
for the problem
1) There is no testing server running on the server machine.
2) The testing server specified for this site does not map to the http://localhost/tce_marketing/_mmServe ... HTTPDB.php
URL. Verify that the URL Prefix maps to the root of the site.