CELLPADDING controls the padding in pixels between the border of each cells and the cell's contents.The first table has a cellpadding of 8 pixels. The second table is not using cell padding. Notice the difference. There should be a larger gap between the cell border and it's contents in the first table.

Navigator | Messenger | Collabra
Composer | Calendar | Netcaster

This table contains no cellpadding.

Navigator | Messenger | Collabra
Composer | Calendar | Netcaster