Having made and tested the ACP fix, I can say that there is no issue with it, or rather there shouldn't be. Espically since it seems to work for everyone else kinda fine.
My suggestion is this. Delete your override folder, create a new one, and delete any previous downloaded ACP zips. Download this.
http://www.science.uva.nl/~dcslob/amia/acp_override.7z Extract that into your new override folder.
Then Download this,
http://selvecdesign.co.cc/Selvecs_Amian_ACP_fix.7zand extract it into your new override folder. If it wants to overwrite a file let it.
It should be working then. If its not, I'm unsure whats going on. When you enter Amia, the chickens portrait needs to show the number 2 for it to be up to date currently.