While I recently admitted to being terrorized (by another design) from Heaven and Earth Designs, I must say that I would be awed doing a Christmas stocking by them. Their patterns finish as beautifully as anything I have ever seen. The one you chose is beautiful.
I would suggest that you call Heaven and Earth Designs at 1-888-511-7106. They are in Oregon, so they will be on PST (Pacific Standard Time). Their patterns are usually multipage but many stitchers love them as they are truly lovely. They have a website at heavenandearthdesigns.com
You can see all the patterns there and if you click on "contact us" on their home page, you can send them an email. They have great customer service and can help you or perhaps help ECS to refund your money. I would try to stick with the design. Most of their designs they say to start in the upper left corner, but be sure you leave enough blank fabric outside the design to sew it together as a stocking. I like to leave about 2" around my stockings. And I am the crazy one who is trying to stitch SIX stockings for this Christmas!