I still have the same issue after placing the file in the following directories.
\Application Data\Adobe\Dreamweaver 9
\Application Data\Adobe\Dreamweaver 9\Configuration
\Application Data\Adobe\Dreamweaver 9\Configuration\Shared\WebAssist
\Application Data\Adobe\Dreamweaver 9\Configuration\Shared\WebAssist\Library
\Application Data\Adobe\Dreamweaver 9\Configuration\Shared\WebAssist\FormBuilder
\Application Data\Adobe\Dreamweaver 9\Configuration\Shared\WebAssist\FormBuilder\Library
\Application Data\Adobe\Dreamweaver 9\Configuration\Shared\WebAssist\FormValidations
\Application Data\Adobe\Dreamweaver 9\Configuration\Shared\WebAssist\FormValidations\Library
\Application Data\Adobe\Dreamweaver 9\Configuration\Shared\WebAssist\FormValidations\Scripts