Hi Dave,
1 - I'm not aware of such options. I don't think there are another options like that available;
2 - Usually 3rd Party URL rewriters can be disabled inside the web.config. I would open up the one you have, try to find references about TanLD and replace by looking at the web.config os a fresh DNN install from the same version of your original DNN site.
That would be the strategy we would use.
Best regards,
Aderson