To insert an image into an article, edit the article and insert
[[Image:FILENAME.jpg| -- | -- | -- |Caption]]
To have an image deleted, edit its description page and put
{{deletebecause|redundant to image FOO.jpg}} (but of course you would insert the name of the FOO.jpg image. Everything to the right of the | is comment. )
To go (back) to a Redirect Page itself (e.g., to change or delete the redirect), use the link in the (Redirected from Redirect Page) line, which appears at the top of the target page, just below the line 'From Wikipedia, the free encyclopedia.' (For this line to appear, you must first Go to the Redirect Page.)