With a prose style as irrepressible as his kooky TV persona, People style editor and ''Today'' regular Steven Cojocaru charms even when serving up the cattiest Tinseltown tidbits in Red Carpet Diaries: Confessions of a Glamour Boy. For the former misfit (his mom -- quelle surprise! -- used to dress him in velvet suits) who became a red-carpet schmoozer extraordinaire, nothing is sacred...well, almost nothing. Some of the juiciest gossip from advance copies was cut from the finished book (e.g., the A-lister with the worst lip job in Hollywood goes unnamed). But Cojocaru's claws aren't completely clipped. On Calista Flockhart: ''No one looks more pained to be on the red carpet...Ally McBrat.'' Meow.