Blah, I am such a slacker, I missed this somehow, I guess I got something to look into. Also, what are the rune books named? They need to be named "Wood XX" or "tree XX" where XX = number of runes in book. If your book is called Wood, that's why it may not be advancing.
(It's good to have this here, and I did reply back to WinUO thread, just was couple days behind and eightonefive replied saying that it was that issue, the names of the runebooks)
*** Updated due to memory loss