I am so FUCKING FURIOUS - plagiarism SUCKS

Does anyone know how to report plagiarism to FanFiction.Net? Some asswipe has taken 'And None But We Can Be Such Kings', done find and replace with the names and added a couple of sentences.

AND I WANT TO NUKE THEM TO ATOMS!!!!

Check it out: My Prince by sassydemon.

Where, get this:
Arthur is now Jack Harkness
Merlin is now The Doctor (written as The Doctor the whole way through, not the Doctor)
Uther is now Rose (ffs)
Morgana is now Gwen
the Dragon is now Donna (and they forgot to remove a couple of 'the 's)
Gaius is also now Donna

It doesn't even make bloody sense with those characters! Oh, sassydemon has taken out all magic references (so the conversation after they get it on is now incomprehensible) but the dialogue and POV simply doesn't work for either the Doctor or Jack. BECAUSE I WROTE IT AS ARTHUR AND MERLIN!

Which at least confirms that I can do different character voices, ha *bitterly amused*

And they put in a bloody declaration of love at the end, gah, arggh! I wouldn't do that with either set of characters!

And they've got 7 reviews telling them how good it is. THOSE ARE MY WORDS AND MY REVIEWS, BITCH!

I've got screenshots of the whole thing and I've saved it as a web page.

Help me out, oh wise flist - what do I do now?