I've seen this doc! It's wonderful!
I was on the second R Family Vacations cruise with Rosie this past July 2005, and this documentary was screened. It is going to be on HBO, but I'm not sure when. The version we were shown seemed to be the final version, so it may be out soon (fall/winter 2005). The title is: "All Aboard: Rosie's Family Cruise". There was some discussion that the documentary may be released in a few theatres prior to being shown on HBO because it would then be eligible for Oscar consideration.
It is a wonderful documentary about families with same-sex parents: their struggles, their joy, their love. Of course, Rosie and her family are the centerpiece and the 'big draw', but it focuses on the stories of several other families with gay and lesbian parents, not only Rosie's. It is very moving, emotional, touching, and courageous. I'm not sure if it is exactly the type of doc that gets Oscar consideration, but I thought it was wonderful.
I should also add that after the screening, Rosie said that this documentary is the single piece of work from her career that she is the most proud of!