Update...
He is definately a She. I bought this snake to breed THIS season. A MALE, get him half frozen, gets the URI, has internal parasites, and NOW it a FEMALE!!!!!! SO unbelievably angry right now. I contacted the seller, but surprise, surprise no response. He was so quick when it came to taking my money...I'll give him a couple days I guess to reply.
So frustrated. Oh, and the Vet charged $20 to double check the sex for me. Seriously? $20 to probe a snake? Okay, I'm done for the moment. Anyone have suggestions how to deal with this?