I'm having the same problem
I just purchased the CSS Scuptor upgrade about an hour ago. I'm having the same problem when I try to insert Spry. I'm also using Dreamweaver CS5. I too am very disappointed with CSS Sculptor. There really isn't much more to it than there was. I also would like my money back. Perhaps down the road when you have added functionality that is worth the $50.00 upgrade I will think of upgrading again. I know the issue is not with using spry widgets in my Dreamweaver CS5 because it works fine when I insert them without the CSS Sculptor...just in an empty page. How do I go about getting my money back. Do I have to call or can it be handled by email?