As a couture house, Christian Lacroix took its last bow in 2004, but the ghosts linger. They can be found among the pouf skirts, the rose prints, the crinolines. In fact the label lives on as a luxury men’s line—as well as accessories and, most recently, home wares—designed by Sacha Walckhoff, whose held various stints at the label since 1992. From his eclectic Paris home filled with memorabilia, he entertains Crane.tv with stories of Monsieur, his legacy and the incredible lace dress and mantilla Madonna wore in those Steven Klein photos…