I had the same issue in Dreamweaver CS3. The solution I found
is a bit of a pain, but it at least lets me develop. In the
"Testing Server" section of the Site Definition setup, my actual
URL prefix should be:
http://www.servername.com/folder/folder
But when I set it like this, my datasources do not show up.
When I changed the URL Prefix to:
http://www.servername.com
the datasources showed up!
Not sure why this works, but it does. The only hassle is that
I cannot use the Preview function as easily since this is not the
correct URL where my website is sitting.
I hope this works for you.
BTW - what version of Coldfusion server are you running? I
have 6.1 - perhaps this older version of Coldfusion is the issue.