From reading posts here i get the impression that many of the storylines are a bit messed up(people will correct me if i'm wrong). I've had it recomended to me that i stick to the original game quest of Nathanial Hawk, for the least problems. Which doesn't help you sadly - have you checked the thread for the specific quest? This one here:
http://forum.piratesahoy.net/index.php/forum/100-the-chronicles-of-horatio-hornblower-horatio-hornblower/
Also looking at your last log the only thing i can say on it(and i'm not an expert on these error logs!) is that you seem to have sort of memory leak issue(a stack overflow) which may be caused by some of the code in the game, this would result in a CTD eventually as you run out of system memory? I've no idea how to fix that though.
http://forum.piratesahoy.net/index.php/forum/100-the-chronicles-of-horatio-hornblower-horatio-hornblower/
Also looking at your last log the only thing i can say on it(and i'm not an expert on these error logs!) is that you seem to have sort of memory leak issue(a stack overflow) which may be caused by some of the code in the game, this would result in a CTD eventually as you run out of system memory? I've no idea how to fix that though.