Hi Denis,
I didn't even know I had a wall here! Thanks for all the info.
This is quite strange, it rather seems to be an issue with After Effects itself since the files seem to be installed at the right location. Just to be sure: you did quit AE and then restart it after moving the files there?
It would be helpful if you tried with another script panel from aescripts. There are several that are donation-based and that you can try for free, for example:
http://aescripts.com/aemap/If it doesn't work with another one we can ask Lloyd for help in case he's already seen that, otherwise you'll have to ask Adobe directly.
March 2015