I found on youtube a cartoon from 1947 of the original version. Click here for that version.
One of things I noticed was where all the non-brass solo's in the original went to in a brass band:
Piccolo- 1st Eb cornet soloist
bass clarinet (frog)- bass trombone with a bucket mute.
After hearing the original I thought that the arranger of the Brass Band arrangement did a really nice job bringing over all the different colors that was part of the larger orchestra.