http://iscoresports.com/

I use to be able to change photos easily, now when I try to change them, it tells me they have been successfully downloaded...to where I don't know, because the picture never changes. What am I doing wrong?

It is most likely a caching issue. If you clear your cache, you should see any updated photos.

How do I do that on my iPad?

On the iPad you may have to force close iScore to clear iScore's cache. Or if you wait two hours, the cached image should expire and you will get the new image.