you can stick anything you like in these sidebars, a few examples are given here, just remember to include a link back to blogger.
about
this is an all css template, there are no html tables at all.
css is a cross browser standard and this template should look great on windows, mac or unix, in internet explorer, opera and mozilla browsers. there are also a couple of css "fixes" that make it look ok in netscape 4 too.