So, what are you looking for? I think I ended up on the page you were pointing to (the link itself didn't work). Did you look at the "SolidWorks Plastics Product Matrix" and the "SolidWorks Plastics Data Sheet (PDF)" on the right side of the page?
It seems to be pretty comparable to Moldflow, but they may have a slightly different way of splitting up what goes in which version. For instance, it looks like the Premium version doesn't give you control over the cooling channels, but does give you insert and two-shot molding, gas assist and co-injection. With Moldflow, I think the mold adviser gives you cooling channels, but you have to go to Insight to get the other capabilities. It may give you full 3D analysis in both versions, which requires Insight in Moldflow. (I could be wrong about what is included in Moldflow Part Adviser, Mold Adviser, and Insight, as I've only got Part Adviser. Moldflow also changed the names recently, so I am probably out of date.)
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