How do I make a rounded corner table in Dreamweaver?

At a minimum, you’re going to need four graphics, one for each of the rounded corners (top, bottom, left, right).

Then, create classes (or IDs) for each corner in a stylesheet, and assign the appropriate non-repeating background image to each.

Depending on the complexity of your table border, you may also need to create images for the edges of the table, top, bottom, left, and right.

Finally, depending on the actual content of the table, consider doing this with layers aka <div> tags instead.

Note, that you can create rounded corner images and the code in seconds with the Rounded Corner Generator.