Does it not show up in L7's AU Val window, so that you could force a "rescan" of it? I guess you already tried that.. I don't know. My install went smoothly, and it automatically passed validation and showed up on the next boot of L7.. same with the MixPak plugs. Although if you need to go back and open up OLDER songs (from L6) to do more work on them, I would suggest that you NOT delete the previous versions of PSP plugs. Just move them out of your Components folder, but exchange them for the new versions if you need to go back and run L6.
Cheers.
jb
_________________________
professional mixing services
http:DotComMusic.com/ears2u