I'm more than willing to try running it. My record on forum game activity is abysmal to say the least, but I've got a month vacation coming up and I'm quite willing to leave this game up to die rolls and winging it instead of trying to cook up my own game on the fly.
Now then, as long as the thread is here to discuss it, here's some of what I'm planning.
First and foremost is naming the Rogue Trader in particular. If no one's up to it, I could take over the roll as a distant, GMing type character, but that'd be boring. Among other things, it's a job that demands the willingness and ability to roleplay and write a lot. Applications would be the first thing up, since the captain will have a big effect on the tone of the game.
Then everyone else could start making characters, mostly by just picking through the background lenses from the book. More importantly would be the ship itself. There's a couple ways to make the ship, but since most people don't have the book it'll be an abstract process. I could just design a catalog of ships for the captain to pick from or people to vote on, but that'd be boring too. The idea I had, and that I've spent the past hour idly picking at, would be to make characters game the Emperor's Tarot (or my take on it at least), and thus semi-blindly design the ship by committee. I'll still let mass decision overrule specifics if needed.
As for the campaign, it'll probably be a matter of me coming up with an initial mission, some loose semblance of an overarching plot, but always let the captain and crew decide where they want to sail to within a sector of Warhammery space. The whole point of Rogue Trader is the Rogue part after all. Drink up me hearties.