I have to break an egg with you; it is actually illegal to use someone else' work without permission. genin32 was uploading Blizzard's pre-beta mods, and he was told to stop, and he did: he didn't get their permission to upload their mods.
I cut-and-pasted skins that Blizzard made to make a High Elven Priest Skin, and everything backfired because I didn't understand the rules at the time.
In all honesty, if the author gives you permission to post the Azerothian Footman on the Hive, then that fine. Go along without permission, and you'll regret it (and the person doesn't need to tail you, for you to feel sorry).
I'm merely saying this as a warning and out of concern for you. Admitting that its not your work is one thing, that I understand. To have not gotten permission from the original author is another matter altogether.
My suggestion is, delete the Footman from the Hive. You'll feel cleaner that way.
Thank you.