[Plugin: Mini Loops] negative tags

Hi,

I’m trying to use negative tags:

[miniloop tags=”-28″ number_posts=2 before_items=” after_items=”]

As you can see, I’m trying to get 2 post from every post except posts has 28. tag. But it doesn’t work.

What am I doing wrong here.

Thank you.

http://wordpress.org/extend/plugins/mini-loops/