I came across two interesting blog articles refuting the notion that "Martin Luther possibly equivocated on the sinfulness of homosexual behavior..."
Luther the Progressive? (Part 1)
Luther the Progressive? (Part 2)
I would have handled the source material differently. For instance, I would not have begun my defense of Luther by sourcing the Table Talk. I also would have sourced the folks attempting to use Luther in support of homosexuality. Other than that, these entries are a nice topical treatment of Luther's words in regard to this issue.