I finally got around to adding this to the Pligg code. The Published, Queued, and Top Stories pages now have a link that says "Read more" in case the summary gets cut off. The link directs you to the comments page where you can read the entire summary. I've attached a screen shot to show you what it looks like. Also, here's the official link where you can check out the files that were edited. Depending on your template you should only have to edit main.css and link_summary.tpl.
http://pligg.svn.sourceforge.net/vie...v&revision=253