So sorry! I've just recently learned about widgets, too. Now here's my confession: I don't remember how I inserted the Etsy Mini onto my VV page!
But you capture it by going to Your Etsy page. On the bottom left, you'll see "Etsy Mini". Click on it and you'll see some choices for how you want the widget to look. Once you've selected them, you can preview to see how it will look. Then you can go back and change it until it's what you want.
Highlight the html for your widget and use Cntrl C to copy it. Then come over here to your page and insert it (Cntrl V) SOMEHOW! (I know it can be done because I did it.)
Sorry I'm being such a dunce. Maybe someone else will read this and take pity on you and explain it much, much better.