Robyn - welcome to the fashion industry network. That is very interesting that you are a milliner. My guess is that the majority of young members on this site may not know what a milliner is? Actually, I think that I only learned a year or two ago.
I am not sure if this is correct, their is a difference between a milliner and a hatter. The difference between a hatter and a milliner is a milliner creates an exclusive head piece for a client based on the clients face, the fashion that the headpiece will be complimenting, the clients personality and their individual taste. A hatter produces hats into which a client selects i.e. "off the rack". I actually have that definition on my Apparel Search site.
If you sell hats and have a website, possibly I can add you to the headwear directory at ApparelSearch.com If you are interested let me know.