If it's just for a demo or something that should be fine, but if you are planning to distribute them with an engine then that isn't allowed. If you're able to encrypt the graphics that would be preferable, so people can't rip them from your project for their own use. If you have some more specific needs send me an email and we'll see. Thanks
OH WOOPS! I just realized this is a paid one... that makes more sense now sorry.... I mean for all the free ones like Halloween, Ashlands and stuff. I can distribute those freely right?