Ron;
First, it is Accuen Media, my mistake. Their store is at http://www.themetrains.com/theme-trains-store.htm
Second, they do not advertise decals in O scale, but were very gracious about making them for me. I don't remember what they cost but they were not cheap. I bought the decals in 2014.
I bought decals for the three flats, all of the wagons (10 total wagons), the Chevy Blazer, the fork lift (several sizes were sent to fit what ever fork lift I could find), the Step Van and the GMC utility truck. Also included was a small scale plan view of the wagon tow bar. Additional information was included on placement and sizing.
I am very pleased with the quality and they were sent well packaged to prevent damage.
Rolland