On the front page slider the excerpt doesn't have a Continue Reading... at the end of the description.
I see that in your previous code and on your website you do have it on there.
I modified the code to this:
if( $excerpt !='') $simplecatch_sliders .= the_title( '<span>','</span>', false ).' : '.$excerpt . '<a href="' . get_permalink() . '" title="Continue Reading">Continue Reading</a>';
I am not really a coder so there is probably a better way to do it but this works for me.
Thanks for the great theme!