Well, OpenOffice failed as well to convert the footnotes/endnotes. Has anyone any idea on how to go from LyX (with Jurabib) to Word? Unfortunately the publisher insists on Word (a very common situation in the Humanities, I 'm afraid)
I don't know tex4ht quite well, but it has a oolatex option/command. Have you tried this? I think it will convert directly to OpenOffice Writer format, and from there you could get to word.
HTH, Dominik.-