There are two different links for posts - one to view within the entire thread ([font style="font-size:.8462em;"]labeled Link here[/font]) and one to view by itself ([font style="font-size:.8462em;"]labeled Permalink[/font]). Example code for this thread:
[div style="margin-left:1em;"]Links within thread:
[div style="margin-left:1em; color:#000066;"][link:http://www.democraticunderground.com/12566033#op|OP]
[link:http://www.democraticunderground.com/12566033#post1|Post #1]
[link:http://www.democraticunderground.com/12566033#post2|Post #2]
[link:http://www.democraticunderground.com/12566033#post3|Post #3]
[link:http://www.democraticunderground.com/12566033#post4|Post #4]
Links by themselves:
[div style="margin-left:1em; color:#000066;"][link:http://www.democraticunderground.com/?com=view_post&forum=1256&pid=6033|OP]
[link:http://www.democraticunderground.com/?com=view_post&forum=1256&pid=6067|Post #1]
[link:http://www.democraticunderground.com/?com=view_post&forum=1256&pid=6068|Post #2]
[link:http://www.democraticunderground.com/?com=view_post&forum=1256&pid=6069|Post #3]
[link:http://www.democraticunderground.com/?com=view_post&forum=1256&pid=6071|Post #4]
The results:
[div style="margin-left:1em;"]OP
Post #1
Post #2
Post #3
Post #4
OP
Post #1
Post #2
Post #3
Post #4
Linking within a thread obviously won't always take you right to the post if it is near the bottom of the page, but it should always bring the post within the browser window. You can also add the #post<num> part to the end of the Permalinks to bring the to the top of the browser window (like this).