I'm new to St Thomas, but I know there is a Pueblo grocery store right near you. I don't know the name of the roads, but here's how to get there:

When you leave Bluebeards, make a left at the bottom of the hill. Make another left and head toward the hospital. You'll come to a T intersection at the end of the road, go right . The road comes around. and you'll come to the intersection with Raphune hill. go straight, back toward the waterfront. You'll see the grocery store on the left side of the road. It's not the nicest store around, but it's close to you.

You could also try the grocery store in Havensight - Gourmet Gallery, not to much further then Pueblo.

--Islander