Rosstopher

1. Make a copy of the \uifiles\default_old folder (copy it then paste it in the uifiles directory)
2. Rename it to whatever you want.
3. Copy all of the files from your usual ui folder.
4. Oaste them into the folder you made in step 2
5. issue the command: load <name_of_the_ui_folder> 1 inside eq

Voila.

Example:

1. Select default_old in the uifiles folder. I copy it then I paste it to make "copy of default_old"
2. I select "copy of default_old" and rename it to "vert_old"
3. I go into my current UI which is "vert" and I copy all of the files.
4. I go into the "vert_old" folder and paste the files I just copied, over the existing files (yes to all).
5. I go into EQ (I had it running while I did the above) and typed: load vert_old 1

My old UI now works, wee. I will need to upgrade it eventually I'm sure.

EDIT:
Unverified by me:
Gymndefender reminded people to make sure that your new folder name is all one word by using an underscore instead of a space.

EDIT:
People with mouse questions, this was in the patch message:

.cur is a Windows system cursor file. See c:\windows\cursors for many, many cursor files. You can make your own by creating a file using various icon/cursor editors. I believe it is a windows bitmap file (guessing) and the ones in the default directory are 32x32 @ 24bit color.

You can use the new cursors with your old UI. Simpy copy the .cur files from the new "default" into your current UI folder. Reload it if you are in-game.

EDIT:
Looks like Sars may not work with this. Post if someone figures out why or how to make it work.