Please tell us.

You can open the MIDItester patch in the extras menu.
On the left you will see the incoming MIDI data, after selecting the right input device for the midi port.
I don’t know the UC-33e, but it will probably be cc messages
for the faders and knobs, and noteon/off messages for the buttons.

You can use the objects [ctlin] and [notein] to get those.
Also have a look at [route], which will make routing easier.

good luck,
jan.

(I wonder what japanese bablefish will make out of this ;)