Took a quick look, didn't find the Uechi-ryu kata forms links on the
website you mentioned, so cannot comment on the similarities or the
differences at the moment.
Things are constantly evolving, and internet just speeds everything up
in only 10 years. Like some Karate and TaKwonDo are 20th century
products, and remembered that 35 years ago they just became popular in
Taiwan, TaKwonDo was introduced to Taiwan then by the Marine, and some
Korean instructors stayed after they were done with the Marine. At time
we were still trained the martial art the old ways (in a way); now, 2
generations later, watching the discovery channel another day on Xtrem
Martial Arts, I was amazed how different the mentalities are.
:) Helen