Popup window ext. problems

I’ve downloaded the Shevlin extension for popup windows. I understand to put the popup window icon on the layer and not the button appearance instance in the library. I am however changing the appearance of the button to what I want it to look like. Now once i do that and place the instance of the popup window on the stage it wont work anymore. If I leave it as it is its fine. Is this extension made to work with Flash MX? Im having a hell of a time trying to make it work. I know there are alot of posts on the whole popup window thing here and I’ve searched them all but to no avail on my problem so any advice someone could give me would be greatly appreciated. Thanks!

hard to tell without seeing the component

although if it works fine before you change it then i would assume you’ve changed something that’s not supposed to be changed … deleted some code maybe