I don't think Anne McCaffery did any crossover stories - each of her universes were quite distinct and fitting them together would have been quite difficult and would have felt contrived.
Actually, they were pretty much all interconnected. Forgive me if I get some terms wrong, I'm going off the top of my head here, but the Federation of Sentient Planets (FSP) factored into most of her series'. Pern was destined to be a member until communication was lost. The Brain and Brawn ships were FSP employees. Crystal Singers went from member planet to member planet on B&B ships. It goes on and on. In many cases the links were mentioned kind of off-hand, very subtle. But they're there.
Multi-stage installations aren't all that unusual, but it's interesting that the first stage says: "The LibreOffice 3.3 installation files will be unpacked and saved in the folder shown below. If you would like to save LibreOffice to a different folder, click 'Browse' to select another folder." but when you click "browse" the new window says: "Select the folder to install LibreOffice 3.3 in:" When i saw that i had to go back and double-check that it was indeed an unpacking and not the actual installation. It may seem like a minor quibble, but this is the first thing new users are going to encounter, you should try to put your best foot forward by making the installation clear and precise.
This is no different that it has been since before 2.0. Not that I don't agree that it should be improved upon.
Put your Nose to the Grindstone! -- Amalgamated Plastic Surgeons and Toolmakers, Ltd.