While looking for information to setup MyEclipse with FB3 plugin , I found not so satisfying answers on google and finally being led here. Good news is that I worked it out on my own and I am going to share the details so others can configure MyEclipse with FB3 and be happy that its not such a big deal .
First things first :
Download FB3 plugin install from Adobe
Make sure your MyEclipse is running with Eclipse 3.2.2 or later
Now the good stuff :
Run the FB3 plugin installer and follow the installation steps
When prompted for eclipse directory, mention the eclipse folder in your MyEclipse directory , in my case : C:\Program Files\MyEclipse 6.6\eclipse
Go on with setup and complete the installation
Once finished, start the FB3 launcher from Adobe in Start Menu. This would launch
the MyEclipse for FlexBuilder.
Now time to do sanity check : Select Window > Open Perspective > Other . If you see various Flex perspectives like > Flex Development, consider yourself lucky and done .
Thats as simple as it gets. Hopefully you will see this post in time and not bang your head against walls for not finding good information in search engines on this topic.