We never yell over questions! We just go to the bar and order dinner & a drink, then come back and answer.

This is how I did ours....
I went into Admin > Tools > Banner Manager
Click create new...made the new banner by uploading the coupon image.
Under where it asks what type of banner...type in a new name like CouponBanner.
Then go to Admin > Configuration > Layout Settings
Scroll down until you see where it says something about banners and look for Sidebox banners. (There should be three)
I select Banners_all, click edit and type in CouponBanner, Update.
Then go into Admin > Tools > Sidebox Layout Manager
Find your sidebox called Banners_all and turn it on, edit it to where you want it to display.
If you're already using your Banners_all sidebox, you can do the same thing just select one of the other Banner sideboxes...and edit it in the Layout Settings instead of the Banners_all one.
The only other way I know to do it, is to create a blank sidebox and put it in there. I think they have a mod to do that and I'll be glad to go hunt it down for you if you want.

Hope I didn't confuse you!!