Daily News from New York, New York • 9

kX vr LrUa "w-v 6 3 PHIL ROURA and TOM POSTER 1 Bl PAUL ML Playing it safe with double primary nods a -jH -4 A i. it -J Mayor Koch may have the municipal labor unions lined up behind his gubernatorial bid, but the New York State AFL-CIO is backing Mario Cuomo in the Democratic primary, the People Page learned yesterday. And, just to play it safe, organized labor also endorsed a Republican, picking Paul Cur-ran over the GOP's designated nominee, Lewis Lehrman. Raymond Corbett, president of the AFL-CIO, said the endorsement so far reflects the thinking only of the 30-member Executive Council and the recommendations will be put before a statewide convention at the Concord- Hotel later this month. "Usually the membership supports the recommendations of the Executive Council," a spokesman said yesterday.

Lehrman was "too busy on the campaign trail" to go before the AFL-CIO, a spokesman said, but it was doubtful that organized labor would support him, because of his strong support for President Reagan's fiscal policies. Meanwhile, MurlePSiebert, former state banking superintendent, ended a six-day swing upstate in her bid for the GOP nomination for U.S. senator. "I had to come back; I kept running out of buttons," said Siebert. She came back for a second reason, though to pick up the support of the Greenwich Club leaders Charles Thompson and Norma TurriH and to attend a fundraiser tonight at the Sky Club.

The host is John McGillicuddy, chairman of Manufacturers Hanover Trust. Siebert, who is counting heavily on help from the financial field, also will be honored at a fund-raiser Aug. 18 with author-columnist Sylvia Porter as host. Hero there Megan Marshak is back on the job at Channel 2 as field producer and news writer. She had been bedded at Lenox Hill' Hospital with a bad back.

John Larsen, who used to run the Bowery Savings Bank and serve on all kinds of state and city commissions, has finally retired and is taking life easy at Spring Lake, N.J. Rodney Dangerfield's having headaches with his film in Chicago. First, he was sidelined with a heavy cold and had a tiff with his director. The last word out of Chi is that Rodney's back and the director's out. Our spies spotted Caroline Kennedy and her boyfriend Edwin Schloss-berg at Central Falls in Soho with Anthony Radziwill, son of Caroline's aunt, Xee Radziwill.

It was Tony's 22d birthday. He's on the town since graduating from Radcliffe. Director-choreographer Tommy Tune caught Bill Irwin's socko acting in "The Regard of Flight" at the Amer- ican Place Theater and loved it, as did Robin Williams, Ruth Gordon, Garson Kanln, Adolph Green and Betty Com-den. Tune's own long-delayed musical, "My One and Only," in which he'll co-star with Twiggy, will finally start rehearsals next week. Dan Rather of CBS bought a co-op apartment at 75th St.

and Madison Ave. for $750,000. RICHARD CORKERY 0AIIV NEWS' Hugrun looks positively huggable after taking dip in Central Park yesterday. Afss Teem FJIx on beauty pageants "Winning the title has been very good for me, but I don't think I would ever want to be in another beauty pageant again. A lot of girls take it very hard when they lose and I don't want to take it that personal.

Some even try to stab you in the back. But nothing is worth stabbing people in the back." So, girls, take heed to Hugrun Ragnarsson, 18, who rounds out a full year as Miss Teen U.S.A. in November. "My father, Ragnar, suggested I enter the contest but 1 never took it seriously," said the beauty who was born in Iceland and moved to Seattle with her parents when she was a year" old. "I entered as a lark and never thought I'd win.

A lot of the girls would flirt but I've learned that you don't flirt with boys, you flirt with men. Men are mature and know what life's all about." Ragnarsson, who now lives on Long Island and goes under the name of Huggy, is here to pursue a career in modeling. She just signed with Kay Models and will get a coming-out party tonight at Xenon. Her boyfriend, Gum-mi Sigurd, 20, is also a model. "We've been living together for six months," she said.

"I don't believe in rushing into marriage. I feel we should live together for six or seven years before getting married." Does she want to go back to Iceland? "Not to live," she said. "There's no place like America. I will go back now and then to visit my people. Of the 250,000 people who live on Iceland, a fourth are relatives." And how has the year as beauty queen been? "Fantastic! Fabulous! Unbelievable!" Or, as they say in Iceland? "Ethe ad flantte!" 111 Bardot: Sues German newspaper.

Hear, yet Hear, ye! it's Bill's baptism DDt I'm not loose Quelle horreur! Brigitte Bardot, the aging sex kitten of the "50s who did more to liberalize morals than anybody since Eve, is tight as a drum over an article in a German newspaper that portrayed her as a woman with "loose morals." BB, 48 next month, is in such a snit that she ordered her lawyers to file suit against Bild am Sonntag for defamation and invasion of privacy. Court-papers filed in Paris said the article, printed in June, painted Bardot as a "sex star of loose morals." "It's true that I helped liberalize morals," she said in 1979 when she turned 45. "I was one of the first to appear nude in a scene." Brigitte, of course, first bared more than her soul in "And God Created Woman." What will soothe her ruffled posterior? Frankly, just $30,000., William of Wales, the kid born with a silver spoon in his mouth, will be christened today over a silver gilt font in Buckingham Palace's gold music room where his father. Prince Charles, was baptized 33 years ago. The eVz-week-old prince will be surrounded by kings, queens, princes and princesses as Dr.

Robert Runcie, archbishop of Canterbury, officially welcomes him into the Church of Englandwhich William will one day head as king. The prince, will be dressed in a lace robe dating to Queen Victoria. Charles and his wife, Diana, 21, picked the date because it's Queen Mother Elizabeth's 82d birthday. But a royal tradition to baptize future kings of England with water from the River Jordan will be broken. A spokesman said Buckingham's supply ran out.

In these times, it wouldn't have been cricket to ask for more. The entire royal family will be there, except William's uncle, Prince Andrew, 22, serving on the carrier Invincible off the Falkland Islands. And the lineup of godparents include former King Constantlne of Greece and the Duchess of Westminster, whose husband is only the wealthiest man in the kingdom. He's so rich he could buy the crown jewels with petty cash. Now, that's a godfather.

JJIlllBllll kX Diana, holding Prince William..