Store.template.php is the file needed to edit.
It will be located inside the template_main function
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echo '<h1 align="center">', $txt['store_text_title'], '</h1>';
This is the area where it says Store in the store template
I replaced your line of code with this.
echo '<img src="/forum/store/storeimg.jpg"></img>';
It worked. which for me was a major leap. I have a couple of questions which would help enlighten me about how to manipulate an image in this particular situation. 1. I tried to use various forms of the align tag to get the image I used to center. 2. I also tried to add the page break tag at the end and it was not recognised. How would I correctly add these attributes?