Back to location - not as far as Wall House on La Pointe. The shop is on the street just "up" from the street that runs along the harbor, and is located roughly where Cote Port is on the street below. Store is on the harbor side of the street and the outside is pictured lower right in the website that Fred posted a link to. I'm sorry that I don't know my west from my east on St Barth for better directions!
I tried to go there on our last day in January, but the shop was closed and hours not posted…Will be a first-stop next time!