I am sure sombody has to go through this. PopUp In PureMVC.... But Not performing any events.... I know why..
Mediator for pop component is initializing befor you have the component.. Check the solution below...
//reportPopup is of type customComponent(PdfReportFrame).
reportPopup = PopUpManager.createPopUp(this.payrollModule,PdfReportFrame,true) as PdfReportFrame;
registerMediator(new PdfReportFrameMediator(reportPopup, source));