Setting global Permalinks Manually?

I am using this code….

echo "<hr /><ul id=\"second_level_links\">";
						$othercats = wp_list_categories("title_li=&child_of=".$cat."&depth=1&hide_empty=0&echo=0");
						if ( $othercats != '<li>No categories</li>' ) echo $othercats;
						echo "</ul>";

This lists my categories as I need them, but the last category I need the link changed manually or permanently. Is there a way to do something similar to this, or is there another solution?

get_category_link( 86 ) = get_category_link( 6 );

I need the last category in this list to list to a DIFFERENT categories permalink. Any help will be greatly appreciated.