Hi John,
I just emailed you a zip with a dll and instructions that should get your existing routes working. Its just a mapping from the new route system to the old one which I copied into the new class library. the code that used to be part of mojoportal and worked with the old routing config files is now in this new class library along with a class that implements the new IRouteRegistrar and just calls the old implementation to plugin routes from the config file. So this should just work with your existing route config files and get them working again.
I have not tested it though so let me know if you have any trouble getting it working.
Thanks,
Joe