August Abolins -> All said..

 AA> The graphical tabs don't appear in IE8 anymore.  They would
 AA> normally show up as a top row in the browser window.  Tabbed
 AA> browsing *is* enabled.  I can still Alt-Tab and navigate from
 AA> window to window, but visually I don't have a list of tabbed
 AA> windows anymore.  Anyone have a clue how to get them back?

As oddly the visual tabs had disappeared, they reappeared!  All is fine
now.  Also..  a correction to the above: Alt-Tab should be Ctrl-Tab.

BTW..  I discovered that Ctrl-Q does a nice visual rendering of all the
tabbed pages - very similar result to W7's technique when hovering over the
tabs.

--- Thunderbird 2.0.0.24 (Windows/20100228)