Help Saved photo issues with my Droid X

[CJMow]

I have taken photos with my phone then have renamed them. Now I have duplicates and triples of the same photos. Also I have deleted some photos and the picture still shows up but the delete option has been grayed out. How can I delete these photos for good?

I have tried doing this directly on my phone and also by hooking it up to my mac with my USB cable.