I will go ahead and lock this, seeing as the issue appears to have been fixed. If you ever want the code that will allow you physically show an image on the website in a post, in most cases, using this code should help along with the URL:
[IMG][InsertUrlHere[/IMG]
If you ever want to post a picture in your signature or want to make a post with a picture, when you upload the image to Imgur, select the arrow down symbol, click "Get share links," and copy the BBCode generated text.