AbleCommerce Shopping Cart Software

I'm not seeing any place in the admin screens to apply a coupon to an existing order. I can add an order item for a discount, and make it look like the coupon. But that doesn't include this order under the coupon reporting.

Is there something I'm missing somewhere?

*Note that I work with kyledr, so this is for the same issue. I believe I have this tracked down to something to do with having anonymous authentication disabled and windows authentication enabled. This is on a server running windows server 2008, IIS7. We lock down our development sites with windows...