Did you own CSS Sculptor before joining the program? I'm not sure that we have updated it since it started, so you should still have the most recent version in your original purchase.
It sounds like it could be a bug in the subscription cancel process... since technically I think you probably should have gotten the most recent version of CSS Sculptor and not gotten Site Sculptor.
You better cancel fast if you want the same experience, because I'm going to have someone look into it ;)
... ok I looked into it and it turns out that Dave purchased his version of super suite before CSS Sculptor was out, so he didn't ever really own that extension, and we cound Site Sculptor as an update to CSS Sculptor, that is why you got that one... not a bug just a generous cancellation policy ;)