> Clicking on the "Details..." button shows the certificate details are all
> in order and are issued by well-known CAs like Thawte or RSA.  Is there
> something I'm missing in my setup in order to properly authenticate these
> SSL certificates?

This happens for me as well.  I had assumed that its just that konqueror 
doesn't have the well-known CA's (or any CA's) preloaded.  Confirming that 
that was the case and working out what needs to be loaded and where is on my 
todo list, just haven't got to it yet.

cheers
mark