By default Helios is packaged with many Enterprise Application Servers and Web Servlet Container servers, such as Apache Tomcat, but not yet with GlassFish V3 server.
To install Glassfishv3 support in the IDE, just do the following:
1) Add a Repository by going to Help\Install New Software
2) In the Available Software, Workwith text box, click the Add button
3) On the popup Add Repository dialog box, enter a name 'GlassFish Plugin Repo' and for the location url: http://download.java.net/glassfish/eclipse/helios
4) In the next screen, select a location in your local, where to install the GlassFish server.
