All the files for your custom interface should go into the Sony/EQ2/UI/<Custom UI Name>/ folder, where <Custom UI Name> is the name of your UI (you pick a name for it -- easiest if you make it one word).
The, open up your eq2.ini file in the Sony/EQ2/ directory (or, if you don't have one, make a blank one) and add the following two lines:
cl_ui_skinname <Custom UI Name>
cl_ui_subdir UI/
Again make sure <Custom UI Name> there is the same one as you used for the folder. And dont put the <> in either place hehe =)
Also, if you want to skip the intro movie while you're there, add this line too:
cl_movie_enabled 0
|