There is no standalone "LilyPad 3 Gaming Edition" installer. The "Gaming Edition" simply refers to configured for high-performance gaming. Use the plugin that ships with PCSX2 Nightly v1.7+ – it contains the most up-to-date Gaming Edition code available.
Even with a correct LilyPad 3 Gaming Edition download, users face issues. Here is how to fix them: lilypad 3 gaming edition downloa
(like a DualShock 3 or 4) with this plugin, or are you trying to host a game server There is no standalone "LilyPad 3 Gaming Edition" installer