If you are trying to migrate your policies from HIPS 7 to 8, I would follow the migration guide on page 22.
Solved it. Thanks for the help @ fitchsoccer. I tried doing hte migrate but received the same error of not having any signatures. I wound up re-accomplishing my whitelisting via the application. And instead of putting full file path with the .exe; I only put the .exe and it worked.