Both website lists the size as the same but when U do the download then download.com pops up your download with 44.4 megs. I would think if the hippo is advertizing it at 12megs than that is the program not the update. How can U get an update to a program that you don't have installed yet.
Pardon me but I have to say, Hello!
If you think I am rude than go see Clint Eastwood's new movie.
If you did that, then you would notice that the signature files are about 40MB. Take that away and you're left with the core application, which comes out to around 12-15MB.