Phireworx have just released ‘SmartTabs’ which is an AutoShape for Fireworks MX 2004.

This allows you to; Easily Add / Remove Tabs, Control the tab stacking order, Easily resize the tab page and use the subselection tool to change tabs and labels.

For a limited time this extension is available for $7.95, with prices increasing to $9.95 at the end of March.