I know it’s difficult for evos to swallow, but they are indeed finding dino soft tissue, and they are finding it on a fairly regular basis now:
Oldest Dinosaur Protein Found — Blood Vessels, More
http://news.nationalgeographic.com/news/2009/05/090501-oldest-dinosaur-proteins.html
I know it's difficult for YEC's to swallow but National Geographic can be read by non-YEC's too. The following link is to an article in a subsequent issue of the National Geographic that casts doubt on many of the soft tissue finds.
http://news.nationalgeographic.com/news/2008/07/080730-dinosaur-tissue.html
Additionally, if the fossilization process can be interrupted such that carbonization is not permitted to happen (maintaining an anaerobic state and no exposure to heat above 100C) soft tissue elements such as proteins can be maintained as well as the fruit in your momma's canned preserves.