Use your favorite html editor to make the table info.

Example:

Code:

<table width="140" border="0" cellspacing="2" cellpadding="0"> <tr> <td>[img]images/icon_mini_menu.gif[/img]</td> <td>Home</td> </tr> </table>

Now that's only the first item in our menu, but you get the idea.

In admin > Blocks, name your block, and paste the table info from your editor into the "Content" area.

Save the block and you're all set.