what process do I have to take to have my marriage annulled?

I married my husband February 22,2007. I was under the impression that he was divorced from his wife but came to find out he was not. He is from the Phillipines and I met him online. We conversed for 1 1/2 years before he asked me to marry him. Because he was not an american citizen and did not have proper visas he went back to his country. I found out from my husband that he did not ask his wife for an annulled till 10 months after he had married me in the United States. I have a copy of his annullment papers fron his 1st wife that he sent to me and just in December 2013 I recieved a text message telling me that his annullment was never finalized. Do I have the right to request an annulled on these grounds? Also I have not seen my husband since July 30th,2007. Please let me know how to proceed, thank you for your time.