Well, if it *is* the Collector, in the game, you had to "awaken the four guardians" in altador before you could beat the darkest faerie.
They were:
Fauna (who was called "Protector of Petpets") aka the Gatherer
The Collector
The Theif
and The Gladiator.
You had to find the Gladiator in the colosseum, the theif in a series of underground tunnels under the city, Fauna you had to deal with a bunch of petpets to find, and the Collector was located in the City Treasury.
The city was divided into four parts: Colossum District, Bazaar District, Garden District and Market District, respectively - split up like four pieces in a pie.
Plus the Hall of Heroes, where you talked to King Altador, himself, and he told you that you had to find the four guardians.
The city on the neopets site looks very similar to the city in the game.
If it goes along with what was in the game:
Gormos will be in the building all the way to the left behind the round fountain-looking thing (It was an aqueduct in the game, and you had to climb up on top of it and sneak into the building through the roof.)
Kelland will be in the statue that is at the very bottom within the city walls. (In the game, there were three statues and you had to arrange them properly, which opened up a secret hatch - took me FOREVER to figure that out!)
And I think that Fauna will be in the building directly above the "Magical Marvels" sign. (Hers was the easiest to get into, except that you had to chase after a bunch of miamice to round them up, and then once you were inside, you were attacked by drackonacks, which you couldn't hurt or it locked all of the doors
)
That's just my best guess.
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