I am really disappointed that Adobe's Dreamweaver CS3 does not at all support connectivity for MSSQL & PHP5 sites or other ADODB connections. Previously the CS2 version supported it through extensions created by Interakt Online which has now been purchased by Adobe.
Interakt provided a free extension for PHP ADODB sites which is not functional with the new version of Dreamweaver and Adobe is not continuing that extension.
An open source project on Source Forge named OpenPHAkt has been created to continue that effort; unfortunately the project is not moving very quickly. It is still only in the planning stages. I would encourage anyone and everyone to do 2 things, first complain to Adobe. This functionality should exist. Second, participate in the project. There are many ways to contribute, you do not need to be a programmer.