Just shoot me a message saying what's happened (in the unlikely event it does). Generally it won't matter a shit anyway, wherever else it's posted will be be a zero traffic blog or freebie site anyway. If it's one of the big forums or blogs I'll just get in touch with them and have it removed.
It was more of a theoretical anyway, i have only ever posted one tut, i've got 2 others nearly finished but i lost the pics that go alongside them. I wouldn't know if it had been posted elsewhere as appart from Apocalypse 40k i don't visit anywhere else.