where do i gte a monkey corpse for this quest it makes no scence every site with a guide say's range or mage a monkey on karamja...but ive probly killed 100 monkey by ranging and maging but still doesent work.... plz can someone help me :( :(

You have to have started that Tai Bwo something Trio quest or whatever, you just have to start it though according to the guide so you don't have to do the whole thing.

jungle potion?? i already did it

No, it's called Tai Bwo Wannai Trio quest.

You need a corpse or bones, both are fine.