with Safari 4.0.2
theme used: Garland (the standard theme when installing Drupal 6)
the fckeditor will only stretch something that looks like "5" rows (light blue colour) (probably because that is one of the settings) the rest of the field is not usable and not expandable. Looks like when you give a few enters, it gets the correct height anyway.
I wasn't able to set a width of the tables nor to get a handle to drag the tables to a specified size while I'm able to do this in Firefox.
Also with tables if you right click on a table then the side popup menu (the one around your cursor) can sometimes be at the top of the page or even higher making it not accessible at all. But with a bit of luck you can select the entire table and click the table button to edit the table properties, that works. Trouble is that if you want to modify a cell, row or column there is no such button displayed in the toolbar so you are really depending on that fly-out menu.
Are there buttons for cell, row and column properties?