Hmmmm....I don't have GOTY, but I still have the 2 Addons folders.
I think if you have OFP up to 1.46 and then install Resistance you get 2 Addon folders as well, one in the OFP root and one in the Res folder.
Anyway, Just put the pbo for each addon in the Addon folder, I always use the root Addon folder, I hardly ever touch the one in the Res folder.
Planck