Talk show queen Oprah Winfrey’s golden touch has boosted countless entrepreneurs, writers and self-help gurus over her 25 years on air. Now, as ‘Oprah-calypse’ approaches — the show will make its last tape in May 2011 — those who haven’t made it are scrambling to secure a slot on her couch before time runs out.Every time Stacy Igel concludes a meeting with her staff, she ends it the same way: “OK, I’ll see you on Oprah!” There’s just one hitch: Igel, the founder and creative director of Boy Meets Girl, a clothing company in Manhattan, has not been invited to appear on The Oprah Winfrey Show. Not yet. But “I am always talking about Oprah, ” she said the other day. “Over the years I saw her interviewing all of these designers, Tory Burch, Marc Jacobs. “Igel, who has adopted the slogan “Passion. Drive. Oprah!” as a professional mantra, routinely pitches a producer at the show with whom she went to college -Timescrest