We will be using Eclipse Ganymede and Sun JDK 6.0+ for the illustration. Geronimo Eclipse Plugin(GEP) can be installed using the following options

Installing GEP within WTP

1. Once you have all the prerequisites installed. Launch Eclipse from <Eclipse_Home>/eclipse.
2. By default Eclipse will be launched with Java EE perspective.
3. Select the servers tab as shown in the figure and select New->Server.
   
   
   
   
   
   
4. On the next screen select Download Additional Server Adapters as shown in the figure.
   
   
   
   
   
   

Installing GEP using Eclipse update manager

Manual Installation

Using deployable.zip

Using updatesite.zip