Ah, I can see that you do not have the complete addy copied and pasted. Don't worry, this happens to a lot of us when we first started. Snapfish has very long urls that extend beyond what you see in the properties box. You have to keep dragging the mouse to make sure you get it all. A finished snapfish url will be 3 or 4 lines long (you can see by pressing 'quote on your post yours is only 2) and usually end in a series of letters. Please try again, and if it's not going to work for you, might want to switch to photobucket. Good luck!
I had a hell of a time with Snapfish URLs at first. I tried to post one pic about twenty times before I finally got it right. I have a Photobucket account as well, but it's harder to upload to and I've exceeded my limit. So I mostly use Snapfish, now that I got the hang of the URL's. It's been awhile since I posted pix, but I've got to do something about that. I love posting ZooTV Bono in particular.