I've never tried this method before, so am I doing something wrong? This time I tried clicking the "Browse" button in the Admin, then attaching the "XML" file since that's what it asks for. It is giving me an error: "Callback LiamW_410Gone_Listener::goneThreadData is invalid (Invalid Class)." I tried both the XML in the root of the ZIP and the one further down inside /410Gone directory. I asked the addon creator also but maybe others will run into this and be helped by this thread in the future.