Help With Making Tables W/FrontPage '03 & Questions

Hello,

I'm making a simple page and am having trouble getting the tables
to look right. Here's my situation:

I have a header graphic. I have created it's own table, 1 col, 1 row
the same width & height as the header... say it's 750 px wide. I want
to create two columns underneath it. One column to the left that I'm
going to use for the navigation buttons and the right will be where
the content is.

Column 1 = Navigation Column 2 = Content Area

Say I want the left navigation area(column 1) to be 225 pixels wide
and the rest to the right(column 2) to fill the void covering the rest
of the width using the 750 px. 750px - 225px = 525.

Here's what I'm thinking: Create 1 table under the header graphic that
is 1 column & 1 row. Width would be 750px the same width as the
header. Then create 2 tables within that table. Col. 1 would be 225px
and the 2nd, not sure, but thinking the 525 I mentioned above.

I understand cell padding, but not cell spacing. What is cell spacing?

Is my model on the right track? See below to recap:

1.) Create 1 table for the header which is 750px wide. Table would
be same width and height as header.

2.) Then create another table inside that table with 1 row & 1 col.
underneath with the same width 750px.

3.) Left column would be 225px and the 2nd I'm not sure to get to
fit right.

If it's right, how do I do this? I can insert a table within a table, but
when I go and try, it doesn't look right.

Also, for the whole table under the header graphic, I set height to
100% and and created 2 columns within that table each having
height of 100%. This way, as I understand it, the table will move
downward as the field expands.

Hope I didn't confuse you, but your help would be very helpful
about now. I have questions inside of questions and it sounds
confusing to me!

Thanks,

LastWarrior