IN IT TO SWIM IT: You may still be wallowing in those added pounds from the holidays. (Thanks, Aunt "Just Have One More Cookie" Barbara.) But that's not stopping the 2010 swim collections from making their debut. And tomorrow night is no exception with the opening of Zingara Swimwear's new boutique in Aventura Mall. The event is a chance to peruse co-designers and sisters Nathalie and Jeaninne Azoubel's new collection of suits and swim accessories. GET IT: RSVP to firstname.lastname@example.org or 305-864-3434, ext. 113. 6:30-9:30 P.M. Aventura Mall, 19501 Biscayne Blvd., Aventura.