Issue with widgetfactory in CP8

I have created AS3 widgets int he past for CP5.5 but now that I have CP8 a simple static widget is not functioning as it should. I have a function that sets the width of a progress bar based on the current slide – it seems the main issue is that nothing runs within the override protected function enterRuntime() function. Is there a different way I should be achieving this with CP8?

The widget code is below, any insight would be very helpful.

package {

        import widgetfactory.StaticWidget;

        public class progressbar_new extends StaticWidget {

            public function progressbar_new () {

            }

            // THIS CODE SHOULD ONLY RUN IF IN THE CAPTIVATE RUNTIME ENVIRONMENT

            override protected function enterRuntime():void {

                //Set Progress Bar Size           

                var pcent:Number=cpVariables.cpInfoCurrentSlide/94*100;

                //Stretch the bar

                mcProgressBar.scaleX=pcent/100;

            }

        }

    }