Is there a Dummies version for how to set up a store.  I paid this morning for a payment gateway - shows on my credit card as Weebly and pending but unsure as if it is even the payment gateway I was hping as when I go into that section is still only shows Square or Paypal as options - I cant add the Ecwid widget which is what I thought I was paying for.

Then how do I set up my store as I tried following instrucitons but it would only let me see one category even though I had 3 categories