It simply says "Not compatible"
Now, the funny part is, I KNOW I've installed comic press on there before, and it functioned properly. But I've not been able to get it to work since.
I've contacted their support, if I don't hear anything back by the time I go home from work, I'll give them a ring. I don't mind hanging out on the phone for a while...
I've just found a great way to inspire myself to DRAW the bloody comic, so, here's hoping I have more in the future!