As Eggles stated...it's not there in CS2. If you want great control over the way the tables look, InDesign is great. However, it assumes you have the data sorted as you need already are are merely manipulating the style.
If you do as jmgalvin said and keep the Excel file linked, when you re-import the data, you'll lose your formatting (if you've done any) to the table. A plug-in such as Smart Styles from Woodwing Software allows you to re-import, then drag a style on top of the table to re-style..pretty slick.
I use tables for all sorts of things and I love them. If it's tabular data, the data has usually been given to me and it sorted already...or I make sure it's all sorted before importing it.