The photo library is reserved for personal photos/images that we have taken/created ourselves. Here is a direct quote from Jinn when he announced the photo library.

And please upload your own photos / images. If it is not yours, do NOT upload it!
If you want to read the full post for youself, you can do so at The photo section of this site: Photo Library

For now, you will have to continue to post your favorite pictures in the Favorite Pictures thread Here

Sorry, but that is the way it has to be.

Also, Kelli, in regards to you question about a link on the main page, here is another quote from the same posting:

Hope you all like this new section of this site. If this is a widely welcome feature, an announcement will be on the front page too.
I am sure that, as the popularity increses, there will be a link added. I hope this helps everyone and has cleared up a thing or two.