[_Kevlar_]

Sounds like something is up with the EQ2.ini file.

Double check it and ensure it is looking to the right folder and name, otherwise it will default.

cl_ui_subdir UI/
cl_ui_skinname (name of your new UI)

Just to back track a bit, I've installed and ran Aeeolag's UI, it worked with no problems.

Try again. Create a new folder in the C:\Program Files\Sony\EverQuest II\UI

Such as C:\Program Files\Sony\EverQuest II\UI\WifesUI

Unzip the download into C:\Program Files\Sony\EverQuest II\UI\WifesUI

Change the EQ2.ini file so it looks like this (assuming you are using the default EQ2 directories).

cl_ui_subdir UI/
cl_ui_skinname WifesUI

The new UI should come up.