In short
Sign in, open your profile/gallery uploads, then edit or delete photos you own.
Gallery uploads are tied to your member account. Use your profile / gallery tools while signed in — not the old Members → My Profile → Details.aspx path.
How to do it
- Sign in.
- Open your profile from the Members menu (your member name), or browse Gallery and filter to your uploads where the UI allows.
- Open a photo you own to edit or delete it. Only the uploader (and site staff) can delete your photos.
Troubleshooting
If you cannot see a delete control, confirm you are signed in as the same member who uploaded the image.
Want to reuse someone else's photo? See using a gallery photo.