You don't need to do Government quests to unlock areas anymore. This used to be a requirement, but it was changed, and now you can just do the side quests.
Sorry I didn't have time to explain last time, I'll explain in more detail now.
Both Eidolon's plugin and Soly's addon was updated, and the installation steps are different. Download the plugin
v0.3.1 from
https://github.com/HybridEidolon/psobbaddonplugin/releases, which is named bbmod.zip. Also download the entire zip (although I think you've already done this) from
https://github.com/Solybum/PSOBBMod-Addons, if you can't find where to download it, here's a direct link:
https://github.com/Solybum/PSOBBMod-Addons/archive/master.zip, it is named PSOBB-Addons-master.zip.
Extract the contents of bbmod.zip and put it in your PSO folder, and then extract "soly" folder from the second .zip file and put it into the "addons" folder which you should have gotten from bbmod.zip. And that's it, it should work now.