I made a very rough and ready copy of Aldel's website many years ago (12 it would appear!) and turned it into a pdf. Everything that was ever on his site is in this document. I also have some extras that were printed in Routing Magazine that Woodrat users may find useful.
They are a bit too big to host on UKWorkshop but you can get them for a while from zippyshare:
Woodrat Mods by Aldel.pdf
wr-corner.zip
Hope you find it useful, I could never get to grips with the Woodrat.
EDIT: For those of you in the UK or Germany look down to post #16 for a link that will work for you.