April 23, 2008 — BEST wishes to Lou Reed and Laurie Anderson. Having lived together since 1995, the downtown duo finally married in secret April 12 in Colorado. They celebrated in New York the other night with drinks and dessert at the East Village townhouse of Karin and Timothy Greenfield-Sanders. Guests included Julian and Olatz Schnabel, limbo king Mike Quashie, tai chi legend Master Ren, Hal Willner of “SNL,” and Richard Belzer of “Law & Order.”Beauregard Houston-Montgomery spent the night playing with Belzer’s dog, Bebe, and the Reed-Anderson’s dog, Lolabelle.