I’m using the latest suckerfish plugin for wordpress and I’m trying to add a pipe | character between the main list items. I know that I couldn’t get it working with the wp_listpage function and wonder if you came across a need to add that?
I usually avoid adding the pipe character as it doesn’t have any semantic value. I use border-right:1px on the individual list items to achieve that effect.
You could add the pipe character manually if you hard coded the menu into your theme and added <li>|</li> it would probably work.