Not sure if this will help you, but every time I download any akimbo package the only thing I do is to extract it and replace the original files, and that's all. I've never ever touched the bin folder, the only thing I do is to keep a backup of the original 'packages' folder, just in case I don't like it.
I've downloaded the nade mod, and it works
I've downloaded the nade mod, and it works