OMG, the creation museum is the funniest ever. A friend of mine went and loved it. He especially liked the diorama showing how cavemen used harnessed dinosaurs to pull giant plows. You know, back in the dinosaur times 5000 years ago.  

I suppose revisions and tweaks to the theory are ongoing. But the idea that new species arise from older species through an evolutionary process has never been contraindicated. The revisions are in support of the theory. Darwin knew nothing of DNA, yet it's discovery helps to explain the chemical mechanisms by which evolution happens. So again, there has never been a finding that contradicts evolution. And there have been thousands of experiments confirming the process of evolution. It is the basis for all modern biology and is used daily in fields like medicine.  
I'm an evolutionary biologist, this is something I'm up on. If you are aware of a finding contradicting evolution, please publish, you will likely get the Nobel prize for it.