I think that it was getting sent around in 20013, right before MoL, but I might be wrong there. Feel free to correct me.
Even with that said, I still feel like you'd have to be really young to seriously believe that Voriki was going to be a real set after a few minutes of looking at that; probably no older than ten or eleven, to be honest. The visual nature of Voriki, especially with the way that the shadows around the mask and the lightning bolts are done, is just silly.
I'm looking up Mew, as a side note.
EDIT: 2003, lol. I'm leaving the typo up there for the sake of humor.