The culprit was simply the structure changes in MacFUSE version of fuse_kernel.h, at least for the Leopard versions that are now distributed.
I've got a patch that I'm forwarding to Russ and anyone else interested in the changes. Not tested on Tiger as I'm no longer running that version of the OS--that doesn't mean it shouldn't be supported, just means it will take a bit longer for me to test the changes there. -jas
