The stand alone extensions:
CSS FORM BUILDER 2.0.1
DYNAMIC CONNECTION 1.0.0
Form Toolkit 1.0.0
Framework Builder 1.0.2
are not compatible with Dreamweaver CS6.
To continue using those versions, you will need to use a previous version version of Dreamweaver.
If you wish to use those extensions in DW CS6, you will need to upgrade to Data Bridge.