Re: checking for necessary dependancies
If you installed the version in the repository (as apposed to downloading with your internet browser or something), then yes, Software Center, Synaptic, and apt-get should all install the necessary dependencies automatically.
The package didn't get great ratings, but I don't see any reviews that say it doesn't work.
If you want to manually check the dependencies, in a terminal, type
The description includes listed dependencies.
apt-cache showpkg freespeak
Jane, stop this crazy thing!