After returning to EQ after a long hiatus, I discovered the default_old UI was no longer supported, the other sets that I saw were not complete, to my knowledge this one is.

Installation is easy:

Let's assume your everquest/uifiles/uifolder is the folder where your UI files are located.

All you have to do is make a copy of the uifolder (for good measure) and replace these files over the older ones, and you're all set.

Ravanta Suffer
Silent Resurgence
Nameless Server