This isn't really my first time modding Fallout NV. I downloaded the mods manually, however there is no 'manual' install method, only the FOMOD file, which I attempt to import into FOMM and either install it or extract it, however I get hit with the error message I mentioned previously. I run all my programs as an admin, because I am the admin and by default I always run as an admin. I know about FOMM, FNVedit, BOSS, Configator etc. However the problem is not in using them, the problem is in bypassing a problem which stops the mod from being installed or extracted in any way.