Raj,
Since the big renaming in August/September, the NetBeans plug-in
hasn't been working properly.
I am in the process of rewriting it to support both .fx and .visage
files and will be pushing updates out to the hg repo, as well as
putting together a series of blog entries about it over the next few
weeks (the first one should be out no later than Monday 10/31/2011).
Eric M. Smith