The 565 has one on the highest resolution screens available anywhere. If the transducer is installed properly, it should display returns very well. Even with a basic knowledge of how a sonar unit works, you should see what you mentioned.
A trolling motor mount for the supplied transom mount transducer is available from Humminbird, Bass Pro, and other major boating suppliers.
A more compact transducer made for trolling motor mounting and in-hull mounting is available also. That type transducer can be exchanged for the supplied one by Humminbird---leave it in the package as it comes in the box.
Does you present unit indicate the water depth?