I can't find STS at all on the Cathe site now, they took down the link to the presale on cathe.com, but it does not look like the put up STS on shopcathe.com, well at least I can't find it.
I looked too just a few minutes ago and it's not there... I can only assume they won't put it on ShopCathe.com until it is available for shipping If I recall though the Abs DVD was about the same as her other 1 DVD workouts at around $27... but don't quote me on that