I don't know the answer to this, but you might be just as
well off just self-teaching yourself using some of the resources
out there. I used the "Programming Flex 2.0" book by O'Reilly and
the "Total Training" DVD, and between the two of those I was able
to learn PRACTICALLY everything -- and apply what I learned to
actual RIA development -- in 3 or 4 weekend sessions of
studying/learning by myself.
There are, unfortunately, a FEW gaps that weren't covered
(like server differences -- running on ColdFusion vs. other types,
etc. -- and security... how to set up secure logins, file
transfers, etc), so I'm doing web searches and forum posts for that
But otherwise the self-guided books and video tutorials are
pretty thorough and easy to use.