It's probably already mentioned but I do have a few suggestions.
1. The column on the right (info, DL, wishlisht add) should be bigger.
2. When we're on the monitor everything is really wide and not compact like the old design, in this case, moving the menu to the left side (vertical menu) might help
3. I would suggest an option to toggle screenshot/thumbnails.
4. Please tweak the size of thumbnails and the category. Now, the category is bigger than the thumbnails. It should be the other way around. Also, I notice that the thumbnails are equal width, it should be equal height for better and more organized looks.
I attached a screen shot for you maybe it's better to represent some points.