How do you delete the pictures that came on your samsung reality?

So i just got my samsung reality a week ago or so but i really dnt like the pictures that came on the phone. How the heck do I delete them?How do you delete the pictures that came on your samsung reality?Yeah, you can't delete them. they're permanently locked.How do you delete the pictures that came on your samsung reality?I dont think u can. I just tried on my Samsung Reality