The recommended Eclipse version is 3.4.1. You can download and install the Eclipse J2EE version package from the following URL:
A number of Eclipse features are required for FUSE Integration Designer to run successfully.
We recommend that you install these features from the relevant update site at the same time as you install FUSE Integration Designer. This is the easiest way to ensure that the dependencies between features are resolved. See Installing FUSE Integration Designer using the ZIP Files for details.