okay,i was searching the web to see if i could maybe find a premade adventure and i found people who said there are adventures(though,judging from the dates they were probly meant for the d20 version)

The first link says there is a published adventure...

http://www.enworld.org/forum/general-rpg-rules-discussion/123334-grimm-d20.html

And the second says FFG had a preview adventure...

http://www.enworld.org/forum/general-rpg-rules-discussion/64871-preview-adventure-ffgs-grimm.html

Does anyone know where i can find them or if they even exist

That is weird. I don't remember anything about a published adventure.

There was one for D20. It was one of those preview adventures with premade characters and a quick overview of the rules.