Dude, the only difference between this and regular Home Premium is that the Family Pack comes with 3 different activation keys. Other then that it is just Standard Home Premium.
Well actually, the family pack is supposed to only have 1 key which can legally be used on three separate computers. I read that somewhere, but don't quote me on it. It does however raise eyebrows to the possibility of using a standard retail/OEM:COA key on multiple computers and have it activate on all of them having been installed at the same time, but of course that would be illegal if still technically possible.