Downloading some expansions w/ others already installed

Hi there,

I'm not 100% new to cracks and whatnot but in the past I've merely downloaded everything from base game through all expansions. This time, I have a friend who has given me the basegame and a variety of expansions. I'm missing a few, namely Showtime and Supernatural, but I do have University. Is there anything I need to do or be weary of as I download the ones that I am missing? And I do have my game patched to 1.55, so should I wait until whatever this ultimate fix thing is updated?

Thanks!

No, you can just install them on top, as long as they are not Steam games.
Yes, it would be wiser to wait for the new Ultimate Fix, which shouldn't take too long to come out... (a few days I guess  )