the stand alone extensions:
CSS Button Styler 1.0.0
Dynamic Web Charts 1.0.5
SecurityAssist 2.0.5
Validation Tooltips for Spry 1.0.1
Cookies Toolkit 3.1.3
DataAssist 2.1.0
Dynamic Flash Charts 1.9.2
Dynamic Dropdowns 2.7.5
SiteAssist 3.2.3
are not compatible with DW CS6, you will need to continue using the previous version of DW in order to use those, or upgrade to Data Bridge.