Thanks for trying
As I understand it, the "X" on the 2007 stuff signifies a format similar to a zipped format. If what I understand is true, it would seem to make sense that this would also somewhat preclude linking in the manner you are speaking of. It would be akin to opening a specific document after first opening the zip archive.
Helpful and Handy Links
Ahhh... thanks for the info. Bummer though.