get directly into the code to take control. I highly recommend getting TextPad, which is a programmers text editor with color syntax highlighting. I have it open on my desktop at all times.
This is how the table declaration should look: (Substituting Parentheses for the brackets that would make them html code, of course.)
(table width=80% align=center)
You can of course, do align=Left and align=right
If you do a table with three columns and then put tables inside the columns, you can set the width of the tables to 100%, then control the width with the columns. That will allow you to have the left menus, Main Content in Center and Manufacturer links in a right column. I recommend 20% on left and right and 60% in middle.
Here's a link to an excellent html tutorial page. It provides in very logical manner, the functions you have available to you and within each, the properties available to control it.
http://www.htmlcodetutorial.com/
Enjoy.