[xwiki-users] List Last10 XWiki Comments Snippet doesn't work

Hi, I want to display the comments of my wiki, so I've copy/paste the "List Last10 XWiki Comments Snippet" ( http://code.xwiki.org/xwiki/bin/view/Snippets/ListLast10XWikiCommentsSnippet). But this doesn't work. I'm hosted on a XWiki 1.1.1 (but I think that's XEM). Any idea why it doesn't work ? Thanks, Antonio