It works on my system, I get:

33.755319-117.867595Santa AnaCA927011234 N Main St

but I modified the code to use Google API ver. 3 instead of ver. 2 referred in the article, please see the post just above this one.

Not sure though this is the reason, did you try to execute spGeocode with other parameter variations as described in the article?

Regards,

M.R.