Dear Bagistas,After decades of designing, Diane von Furstenberg knows not too veer too far from her signature style. For Fall 2007, she delivered nothing short of dresses, dresses, dresses. The coveted show opened with a DVF staple: the wrap dress. This time around, it was glamified with pretty black taffeta. Other variations of the wrap appeared in sunny orange with ruffles, flirty raspberry…