I need to make some changes to the popups in flex viewer 3, but not sure how to. I don't see where in the flex viewer source where the popups are created. I found popuprendererskin.mxl in the API, but not sure what to do with it. I tried adding it to the skins folder in the flex project source for the viewer, but that had not affect on the build of the project and changes I make aren't reflected. Thanks for any help you can provide me.