Te problem was that in

 Set options.../Scan Rules :
+*domain.org/forum/talk.domain.forumname*
+*domain.org/thread.html*
+*domain.org/message.html*
-*domain.org*

WinHTTrack regards the last record as highest priority. 
So in my case should be :

 Set options.../Scan Rules :
-*domain.org*
+*domain.org/forum/talk.domain.forumname*
+*domain.org/thread.html*
+*domain.org/message.html*

WBR