Wood works on my clone in the photo. It's always possible yours was produced by a different group than mine.
You say you have 1.18 working, so set that as you had it and then extract this archive
http://www.mediafire.com/download.php?b86mc0hnr80c594 to the root of your MicroSD card. Then load WoodR4.NDS from 1.18. If that works, then you know it's an issue with how you were setting it up.
edit:
Seeing as you posted in this thread, did you use the file linked in the first post? if so that's your issue. That file is useless and shouldn't be used, all he's done is run Wood V1.04 through R4Crypt keeping the _DS_MENU.DAT filename. Either use the encrypted DAT file, or the decrypted file should be renamed to an NDS file.