Can't get Zero Gravity Activated - [UPDATED - WORKING]

I am on a new iMac with 8g Ram running 10.8.4. I had the trial of Padshop Pro installed and liked it so much I bought the full version and the Granular Symphony set. I installed the Zero Gravity that came with Padshop Pro but it won’t activate. The activation code is exactly the same as Padshop Pro. Should it be a separate code? Granular Symphony loads fine.

[UPDATE! Finally got the correct Activation code so Zero Gravity is now Activated!] :smiley: