Glad to have put you on the right track.
Regardless of other commentary on the "usefulness" of these modules, they are ALL extremely fragile and the potential for doing damage to your site's visibility and discoverability is far greater than any "perceived" advantages of having "nice url's". Conor was indeed a genius, and you are pretty safe with most of his stuff - but I did discover a couple of flaws in his SagePay module a few years back (which I pointed out to him) and he happily corrected them. So all of us are fallible.
As far as "ignorant masses" is concerned. This is not to cause offence. Being ignorant of something is no crime. MOST people still believe that these "nice url's" positively influence page rank on search engines. This is a result of ignorance. I am simply putting the facts straight, and pointing people to what really matters with seo.
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