e-xoops is a portal which comes with a default integrated forum plugin. phpbb2 and invision are much better forums, so I was happy to find an invision plugin for e-xoops, even though it doesn't completely integrate into the portal at a database and skin level.

The control panel I use offers easy installs of several popular scripts, where you just click inside your control panel to install them. But the scripts aren't explained before you install and some aren't the best that's out there.