I obtained a copy of Tienda through a Joomla template that I purchased. Worked for weeks trying to get the Tienda component working while getting increasingly frustrated. As a last resort I decided to purchase a one month support license from the Tienda folks since the template vendor was of no help. The short of it is, this was the best money I have spent in a long time. As it turned out the template vendor had a corrupt install of Tienda. The Tienda support was outstanding and they worked well past the support contract time frame to insure things were working. I highly recommend these guys.