Pokemon XD shiny pokemon?

Can i catch Shiny Pokemon in Pokemon XD? On the game cheats website this dude said he caught a shiny green Zubat by putting a Pokesnack in the Cave PokeSpot, Purifying the shadow starmie and Putting it at the front of your party if it has the illuminate ability. Is any of it true. Don't slam or diss me; just answer the question.