Images on tags page

I am using the image field to assign images to articles and so far it is working great, everywhere except on the tags page, which appears to extract the image it uses from the article body. I have tried altering the $src line to get the page to load the image field but can't seem to find the right way to do it. It seems like it should be fairly simple but is giving me a lot of trouble at the moment. Can anyone out there that has done this before share the code with me or does anyone have a solution or suggestions?