Working with Rounded Corners in CSS Sculptor
The rounded corner layouts in CSS Sculptor require the use of images to achieve the rounded corner effect. Unfortunately, this makes working with rounded corner layouts a bit more of a challenge.
For adding a top navigation div, you need to create the images (that contain rounded corners) before entering Sculptor.
Instructions can be found in the Working with Rounded Corner Layouts in CSS Sculptor 2.0 How To. csss2_rounded_corners_ht.pdf