I updated a site to 2.4 and blog module 0.3 and found two issues that had to be fixed before the module worked correctly:
As I am using german language the blog/lang/de_DE.php didn´t work, because the en_US.php wasn´t included:
This code

i18n::include_locale_file('modules: blog', 'en_US');

has to be changed to this:

i18n::include_locale_file('blog', 'en_US');

The second issue: Somehow the static $allow_wysiwyg_editing is set to false. I had to change it to true, because my existing blog entries were created using wysiwyg.

Is there a link to tar/zip file for 2.4?

Thanks Willr. The change described at http://open.silverstripe.org/changeset/99407/modules/blog/trunk works like a charm!

I have a new SS 2.4 installation with the latest trunk of the blog module. For some reason the Blog Management widget is always present no matter if I am logged in or not. If I am not logged in and click the 'post a new blog entry' link I get this error:

Action 'post' isn't allowed on class BlogHolder_Controller

If logged in it works as it should, but isn't the normal behavior that the blog management widget is not even present if not logged in?

Thanks!