Maybe I have not made clear what numbers you are supposed to be using for the defines.
When you say 10 and 300, are those the sort orders you gave to the first categories in each set? The sort orders are irrelevant to us except for getting the categories in the right order.

The important numbers are the "cPath" (or category id for top cats). You can find this in Catalog > Categories/Products; looking at the list of categories, the cat id is on the left edge. You never said which categories are supposed to be the first ones in each group, so I had to assume it was NEW PRODUCTS for Designs and the second Animals for Clipart. These are categories 37 and 199, which is why I told you to make those specific defines.