[flexcoders] Can't install Flex Builder 2.0.1 plug-in to Eclipse 3.3.1

[Peter Connolly]

I was re-installing Flex Builder.  I picked up the latest copy of
Eclipse, which is v3.3.1.  When I tried to install the Flex Builder
2.0.1 Eclipse plug-in and specified the C:\Program Files\eclipse
directory, it said that that was an invalid directory and to choose
again.  When I tried to install the plug-in to a 3.2.1 version of
Eclipse, it worked fine.  The error message says that the plug-in
requires Eclipse 3.1 or above.  Sounds like a bug to me!  :-(