That being said, if the install for the Optional elements tried to fail, it should probably have told you why, if that reason involved missing 'masters', your initiall TTW install went wrong, & considering you sometimes seem to be loading FOMM to manage FO3 rather than FONV, I have to ask if you're sure you installed TTW to the right game? Ok, the 'either FO3(GOTY) or FONV' issue really sounds like FOMM is taking you into FO3 sometimes, which you don't want to happen.
