If you are lucky, the eclipse feature Help > Search for Flex Builder Updates will work for you. I am not lucky so it doesn’t works. There is a bug filled for Windows Vista based computers (I am on windows XP 64bit).

Flex builder Eclipse update
Anyway, there is Flex builder updater on Adobe site, maybe it will help someone out there :
Go and grab the Flex builder 3.0.2 updater.
If you have some more time, you can read Read the Matt Chotin’s article on subject here.
Bug fixes :
Enjoy.
