There is no need to close the topic because an answer hasn't been given with in a few hours.
For all we know, there is an answer to the problem. Although, the person with the asnwer hasn't had a chance to post yet.
Anyway, On topic:
The Subterranean Spines are in fact, hardcoded into the engine. I remember doing something with them, but I wasn't able to get much done. I think they are kind of like Plague. They are simply, too much work to really do anything worthehile. Hopefully, someone can prove me wrong. Becuase then I'll learn something else!