What's the story?
I use Netbeans 6.5 and Java 1.6.0_11 and I wanted my gui programs to "wear" the nimbus look and feel.
How should I configure my netbeans gui builder to dress my program with the nimbus l&f?
First thing I needed to configure my current project to use the latest JDK, it used as a default a previous version (1.6.0_07) which doesn't support the nimbus l&f.
First thing was to add the latest jdk to the netbeans platform, go to Tools --> java platform and add the new jdk.
The next task is to add the new jdk to the specific project; project properties --> Libraries and under the Java platform pick the new JDK to run this program.
Now that the JDK issue is set, it's time to set the actual L&F:
Project properties --> Application --> Desktop app --> Look & Feel -->
That's it, compile and run your beatiful program, and pay special attention to those beautiful buttons, scroll bars and tabs.