Todd Kopriva explains why You do not need new versions of plug-ins for After Effects CS5.5, with background and instructions for avoiding use of installers for both Mac and Windows.

If you prefer video, Michele Yamazaki of Toolfarm shows one way to move plug-ins to CS5.5 from CS5 in the video below, [update] and Digieffects shows you How to Transfer CS5 Plug-ins to CS5.5 in Windows: