Leonard Nimoy/William Shatner Autographed Photo?

I recently purchased a signed 16x20 photo of Leonard Nimoy and William Shatner for 300 from a FrozenPond kiosk at a local event. It was an impulse buy but I thought it looked pretty authentic. It had a seal on the bottom left hand corner and a COA. I am concerned because the Certificate of Authenticity is not descriptive at all. It says this piece of sports memorabillia is authentic but it only clicked with me when I got it home that the COA is a copy because it is not a sports item. I checked the Frozen Pond website and found it on there ----> http://www.frozenpond.com/xcart/customer/product.php?productid=6648&cat=0&page=1 but I am still paranoid that I might have been duped. I found the same thing on amazon with a sample picture of the same COA that came with the one I bought only the one that came with mine is blue. ---> http://www.amazon.com/William-Shatner-Leonard-Autographed-Signed/dp/B004CYP3LQ/ref=sr_1_1?ie=UTF8&qid=1304193397&sr=1-1-catcorr Do I return it as a freud or is it legit? Is Frozen Pond actually as trustworthy as their website says they are?