You are not reading what is on that site. Those screenshots are for the upcoming version of SCI Studio, not the current version.
You will have to wait till the next version of SCI Studio is released before any SCI VGA or higher games can be opened by SCI Studio.
Of course it is possible to get a hold of a copy of the new SCI Studio before it's released. It is still incomplete and is prone to bugs mind you(which is why he isn't distributing it without donations for right now), but if you really want it that badly just donate some money to SCI Studio, after donating be sure to ask for the beta SCI Studio, he doesn't give it out unless you ask after donating.