Version: KDE 3.4 beta 2 (using KDE KDE 3.3.92) In [KDE Components > Web Browser] I have set "in the following broser:..." option. In aKregator > Options > Browser I have for "Left Mouse click behaviour: Open in new tab" (default value). Left clicking on "Complete story" links fires up the browser configured in KDE components AND opens a new tab. IMO, this should bypass the system-wide settings and open with KHTML (in the newly opened tab) the complete story.
Confirmed for KDE 3.4 and CVS HEAD.
Confirmed the wrong bug. :-/ *** This bug has been marked as a duplicate of 99654 ***