Dazzer,
There's a mif/mid exporter, it's not perfect but it would allow you to get the shapes out programmatically, manipulate them as text or with a GIS program, and re-import them.
Walt Cygan wrote the mif/mid exporter, it is here:
http://www.mp2kmag.com/importersub01.asp
There's also a compiled version in one of the old newsletters, look for "three new utilities".
You may encounter some errors, but it should give you a good starting point.
Eric