Inside the boat, you might find a small, loose 2" block of foam. This foam is intended as flotation and should be attached to the inside of the cowl. Simply use epoxy or household cement (such as Shoe Goo) to reattach the foam to the cowl.
After plugging your batteries into the ESC, you may hear a constant, steady beeping. If so, please rotate your throttle trim knob to the 2 o'clock position to start the arming process.