Tube is very easy to find. Just look under the car by the front of the passenger side floorboard. It sticks out and is not hidden.
Here is another link I found with some pictures. Just don't do the thing in the engine compartment, as it is probably not necessary. With the vacuum, you won't have to take back the carpet any.
Oh, btw, I did use a wet/dry shop vac to suck up the standing water in the passenger side to prevent mold and odors.
link:
Toyota Camry LE Is Taking On Water