I have lost the green guide lines above tables.
do you think about this:
If Simon is telling you to use tables to build a layout, you should move on from that tutorial and find another one that is teaching more contemporary layout methods.
Try View > Visual Aids > Table Widths
what concerns your "any ideas for a good online tutorial" so I suppose david Powers turorial:
http://www.adobe.com/devnet/dreamweaver/articles/first_website_pt1.htm l and the following, such as Nancy O's demos and templates here:
YouTube is a free-for-all where anybody can post just about anything. Tutorials aren't checked for facts or reviewed by experts, so it's not what I call a reliable source of good tech info.
If you still want Video tutorials, go to Lynda.com.
Or just use one of the pre-built CSS Layouts in DW. Go to file > New > Blank page > HTML. Choose a layout from the 3rd panel. Hit Create.
. . .just to comment on Murray's point.
There is nothing wrong with using tables in a layout. Tables and divs have different characteristics and sometimes a table is the right tool. Usually the macro-architecture is best handled with divs, but not always.
There's a difference between using tables IN a layout and using tables FOR a layout. Tables are ideal for display of tabular information. Tables are the worst for building a layout. There is no practical reason for using them in the latter way.