I need to know if anyone has an idea on how to trace a picture onto BC cake. I went and had an edible made but it came out very blury, I'm not sure if I can trace it or not it is kind of detailed.

I would put the image onto a rolled out piece of fondant, cut it close around the picture, then slide the fondant onto the BC cake. You can then pipe a border around the edges of the fondant to clean it up.

10 Ways to transfer images to cakes:

http://www.cakecentral.com/cake-decorating-ftopicp-5925223.html

HTH