i think promo's run differently then a normal picture and i don't think adding tags will help. promo's are something for your newsletter or blog, and to be honest i've ran them before and never had even a nibble. there are quite a few things that need to be ironed out in that area. old stuff should leave the list, but it doesn't. i often forget about the ones i have and i bet they are still there, totally expired.
i can take a quick look to see if your there, which ones are they?
---Mike Savad