To get your curser into a cell that"s small or collapsed just place your curser in a large cell nearby and use "Tab" to move to the right and "shift+tab" to move to the left.

Also learn to use the Tag inspector strip at the bottom layout page. Selecting the <table> <tr> and <td> tags will save you a lot of time.

The Quicktag Editor is at the bottom of the html viewer page. press on a tag and press "Apple Key "

Control click or right click on a tag > Select Edit Tag to open a small tag editor. Cool.

Place curser in the table then Commands > Sort Table
Sort By: (pick the column to be sorted)
Order: (set it to your needs) Remember "ALL" the table date order will be changed. Don't worry about it, the date will not be lost only reorganized.

Options:
Sort Includes First Row (most of the time this will be left unchecked)
Sort THEAD Rows (most of the time this will be left unchecked)
Sort TFOOT Rows (most of the time this will be left unchecked)
Keep TR Attributes With Sorted Row ( if you have a background color with each row cell you need to check this )
Press OK

First off it can't be done in layout mode. You will need to enter the second line in Code View. The line creates a box and positions it relative to the next layer. You can change the width to fit your layout.

<div align="center"> <!-- Centers the page-->
<div style="position:relative;width:800px;"> <!-- position:relative creates the magic-->
<!-- All the layers / <div> tags you want to center on the page go here-->
</div>
</div>

I also found out that using CCS to control the Dvi tag maybe the better way to go.
Read this pdf file.
However in the end, you will need to delete the "style="position:absolute;" code from the Div tag that you create to center the page. This will be the one with the ID you labeled "container". Dreamweaver by default places this code in the tag that stops the layer from centering.