I've just committed/pushed a new FlexJS component (and its helpers) to the HTML project. It is the <js:Table> component. I saw that there were JS-only fragments of Table present and decided to make an official SWF/JS version.
The idea is to create a clean <table> HTML structure and mimic it in the Flash Player. For a first-pass, it does a pretty good job.
It works something like this:
<js:Table width="400" height="500">
<!— contents of this header here —>
<!— more headers —>
<!— contents of this cell here —>
<!— more cells for this row —>
<!— more rows —>
You can place nearly anything inside of a cell (I tried it with another Table and Groups). If you need it to scroll, place it within <js:Container> and add a <js:ScrollingViewport> bead to the Container.