You could use the same type of thing that is used in the forum that shows unread posts.

If you have a text widget and something like the Exec-PHP plugin installed you could use the same code that displays unread posts.

Something like:

<?php
    global $spThisUser;
    sp_forum_api_support();
sp_UnreadPostsInfo('tagClass=spRight spUnreadPostsInfo&spanClass=spLeft&iconClass=spLeft spIcon', __sp('%COUNT% topics with<br />unread posts'), __sp('Most recent topics with unread posts'), __sp('Mark all topics as read'));
?>

The CSS might or style may need to be adjusted but that should show the unread list on every WP page where the widget is active.

The codex entry sp_UnreadPostsInfo shows more info on that function and how you can change it if needed.

I’ll try it out and let you know how it goes

please do…

It worked great actually and the code is very simple to grab.

I simply added a link to it like this

<a href="http://www.nicheoptimizer.com/forum/"><?php
 global $spThisUser;
 sp_forum_api_support();
sp_UnreadPostsInfo('tagClass=spRight spUnreadPostsInfo&spanClass=spLeft&iconClass=spLeft spIcon', __sp('%COUNT% Unread Posts'), __sp('Most recent topics with unread posts'), __sp('Mark all topics as read'));
?></a>

Looks good!

The possibility sounds good and i will try it too.

here my site: http://www.bulls-club.de

it works great but i can`t open the window with all new topics when i click the “Most recent topics with unread posts” button. i click the button but nothing happens. dosn`t work it on the sidebar?

almase said: it works great but i can`t open the window with all new topics when i click the “Most recent topics with unread posts” button. i click the button but nothing happens. dosn`t work it on the sidebar?

It should be a direct url link to new posts. When you hover over the icon does it show the /forum/newposts link at the bottom of your browser?

No its javascript:void(0)

Javascript:void(0) is correct. It just means the href attribute is not used. Instead the onclick attribute is used.

Mr Papa said 
Javascript:void(0) is correct. It just means the href attribute is not used. Instead the onclick attribute is used.

mmh and how can i change it?

i used the code from user Justin Lewis

almase said
No its javascript:void(0)

Thanks. That mean it is trying to use the popup window to display the unreads.  If in the sidebar you should turn off the popup and have it take the user to the actual unread page itself.
You should add &popup=0 to the line right after spLeft in that example above, not using any spaces.

Thx. Now it works!

cool. thanks for the update!