UT Excel Tool
I cooked up a little Excel tool using VBA to randomize the doors for the last Newman/Lewis educational UT quiz. Point the directory to the bitmap folder, setup the files to be randomized on the left column and click the three buttons on the right sequentially. This will randomize the filenames. You then just need to import the bitmaps into the "quiz" texture package using UT editor.
This is a very rough hack to speed up the process of making new quizzes but is not meant to be user-friendly (yet). Use at your own risk. Make sure your files are backed up before using.