Adding an image/ logo to newsletter

Hi, this newletter code works really well. I would like to add an image to the header of the newsletter (like a logo), but am not sure how to.

I can add an image/file upload into the admin.html form, but am unsure how to relate it to the admin_ac.asp page. When I try to edit the asp code it is coming up with 'page cannot be displayed'.

I do not need the image to be added to the database, but for it to just be displayed in the newsletter.

Can anyone help?

Thanks