And wore Hussar regiments the same color uniforms as they did in the late Seven Years war?
Well, roughly it did, but there were several differences. (Btw, not all troopers had the mirleton. From 1804 shako's were introduced, and by 1806 a mix of the old and new headgear on campaign would be appropriate, though most troopers would still have the mirleton.)
I do have the details for each regiment; are you looking for a specific regiment? I could send you the details.
see
http://www.grosser-generalstab.de/ , inhalt, Knötles uniformkunde
for the knötel plates, there are many about hussars on horses, both syw and 1806.
Cheers,
Christiaan