Why Make it Hard??
You shouldn't have to rename the EXE's or folders to install WickedGL. All you need to do is to copy the opengl32.dll (from the WickedGL folder) into the JO/GameData/ folder.
If you want to use the hi-res version of the WGL driver, copy the ogl_hres.dll and rename it to opengl32.dll .
Remember, any file named "opengl32.dll" will be the GL driver JO uses.