Nope, not playing that Pokémon World Online, but speaking of Magikarp, I managed to catch a shiny one the other day. Not the greatest stats, but when I evolve it, it won't be the red Gyarados you find in SS/HG, which I already have. Somehow, finding a shiny Magikarp and then evolving it is more satisfying than catching the one in SS/HG
Currently I'm SRing for a shiny starter in my SS. Man it's taking forever! I swear I'm going to develop carpal tunnel syndrome before it's done.