Well, I got the Apache error window to go away by adding the following to my httpd.conf file:
AddType application/x-httpd-php .php
AddType application/x-httpd-php-source .phps
So that's good news, but the bad news is that I'm still not getting the tables to show up in Dreamweaver when doing a recordset. It just says ***Table not found.
I've found a couple of leads online and am looking into a solution now.
If I find out anything, I'll post it here. (And if anyone else knows of a solution, please do the same.)