I noticed also that the map links are not working. Unfortunately, I did not save the maps. Thomastown is really just a crossroads on the way from Tipperary to Cashel (headed east). I don't remember any streets in Thomastown, more just a stop in the road. You can try www.mapquest.com
You mention Ardfinnan Church. I am trying to find baptism records for Thomastown for 1815. I have tried the Tipperary Family History Research (TFHR), but they state baptisms for that period were destroyed in the civil war. The Cashel and Emly records are only available at the TFHR from what I understand. If you have an alternate source, I am very interested.
Thanks in advance!