Do you mean instead of a submit button, to use an image?
Change:
Code:
<input type="submit" name="submit_view_all" value="View All Entries" style="background-color: #006633; color: #FFCC00; font-weight: bold;">
To this:
Code:
<input type="image" name="submit_view_all" value="View All Entries" src="http://www.yoursite.com/images/yourimage.gif" border="0" height="40" width="100" hspace="5" vspace="10" align="middle">
Change
http://www.yoursite.com/images/yourimage.gif to the URL of your image. And change the height and width settings if you want to (or leave them out - they are optional).