Drag and drop the icon on your active Eclipse Indigo 3.7 workspace, or alternatively, search for "JBoss Developer Studio (Indigo)" in Eclipse via:

Help > Eclipse Marketplace...

You can also view the installation page on the Eclipse Marketplace.

Add the following URL to your Eclipse Indigo 3.7 workspace: {} via

Help > Install New Software…

then select the individual features that you want to install.

You can download Update Zips (Archived p2 Repos) for offline installation of JBoss Developer Studio, but DO NOT UNPACK THEM into your Eclipse root or dropins folder! Next, install into Eclipse using

Help > Install New Software… > Add… > Archive…

and point to the archive you downloaded from the tables below, depending on the features of JBoss Tools you want to use.