In this case, the 'user' was me! :erm: I am to smart for my own good at times.
I had removed the execution bit (chmod -x) on the MODs .php files, thinking (see, there I go again) that as nearly 100% of all other vBulletin .php files aren't executable, these shouldn't be also. Well, guess what!? Yup.
I uninstalled the MOD then removed the installed directory folders/contents and re-uploaded the folders/contents then reinstalled. Activated the MOD and tested. Yup. It works.
Moral here: Don't be so smart dumb ass!