After you cache the fluid, disable the evaluation on the container, you should then be able to group everything and scale to the desired size.
Depending on your version of maya this can lead to some problems but 99% of the time you're going to be just fine. If you hit any snags just fire of another post.
Dave 
From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"