Iggy's Liberals couldn't organize a a piss up in a bar. They planned a perfect way to get the Harper Conservatives to go on record as being opposed to contraception. They forgot to tell or compel Liberal MPs to be there. Three of the Liberals there voted with Harper. Read all about it here and here. The blog that sums up what the other two said albeit with video is here.
Who did the heavy lifting on the vote, the NDP and Bloc. Both Parties felt it was vital to be in the House for this vote. Why couldn't these Liberals be there, Anita Neville, Gerard Kennedy, Andrew Kania, Borys Wrzesnewskyj, Alan Tonks, Marlene Jennings, Joe Volpe, Lawrence MacAuley, and Stephane Dion, Jim Karygiannis.
h/t Dammit Janet