Here are updated copies of the Configuration/Commands/DWC ChartEditor.htm and DWC QuickInsert.htm files to fix the errors using Dynamic Web Charts.
you should copy them to the users configuration folder. for help locating the users configuration folder:
in the configuration folder, open the commands folder and paste the updated files. make sure DW is closed when you do this and delete the cace file also.
Ray will be calling a little later to day to look into the Dynamic Connections error.