How to you move over presets and other software like Nix from CS5 PS and Lightroom 4?
And does anybody know where to find lens correction plug-ins for Olympus m 4/3 and Panny m 4/3 lenses?
In Lightroom, presets and plug-ins are stored independently of the LR version, so there should be no need to do anything upgrading LR4 to a newer version. Worst case scenario, you just run the plug-in's install program again.
In PS, the plug-ins are stored in a subfolder in the PS install directory. After your install the new version of PS, you just copy the old plug-ins subfolder to the new install folder.