It sounds like your photo is saved to your computer in the wrong direction. Go to "My pictures" in your computer and find the one you used. When you open it, it will probably be sideways. There should be two little curved arrows under the photo. Click them until the photo is right-side up. Save your change, and then go back to mycorgi and re-install your picture, this time using the adjusted one. Let me know if that works :)
I'm so glad you have had such a warm welcome. If you have any questions about using the site, please just message me and let me know. I was lost at first until my teenagers helped me figure it out.