Original vs. Ancestral Sin

There is a very interesting post over at Razilazenje on one of the questions that has frequently divided East and West--"ancestral" vs. "orginal" sin (don't worry, the article is in English). In light of some recent comments on this blog, I thought I would pass it along and see what you thought about it (esp. Ian and CA). How might this illumine the discussion in recent comments here on the Immaculate Conception?

NOTE: Actually, it looks like the linked post is malfunctioning. One needs to scroll all the way down to the end of the side bar in order to find the post on "Ancestral vs. Original Sin." It is well worth doing, however.