Yeah... >.<

[CustomProfile]

The eq2.ini files needs to look something like this:

cl_ui_skinname MyUI <------ Name of the folder where the mod is installed
cl_ui_subdir UI/
cl_show_welcome_screen_on_startup 0

The eq2.ini file goes into this directory:
C:\Program Files (x86)\Sony\EverQuest II
Or
C:\Program Files\Sony\EverQuest II