I have never seen this before. It is most strange. Can we establish one thing first? Were the posts EVER visible - or has this been like this since you installed it?

And I have just noticed that bressonlee above is MU as well.

I am afraid that the only thing I know about using this plugin on MU is the change you need to make to the user and usermeta file defines. It is not ‘officially’ supported on MU in that it was not coded to work on MU and I am unable to test on MU.

Having said that there have been many people who have set it up on MU in the past and have claimed it worked fine for them and, as far as I know, are still using it.

Did I notice that a new version was released quite recently? If so and you have upgraded to that was this when the problem began? 

bressonlee:

unfortunately your setup has the wrong defines set for use with WPMU… please read the WPMU tutorial and set the two variables… http://www.stuff.yellowswordfish.com/support-forum?forum=11&topic=836&page=1 

what is happening is that your SimpleForum is not recognizing any users or guests, as such, no post data is sent to the database…

you are not seeing ant posts because without a username to attach the post to, there is no post.

found out what the problem was. instead of modifying the code dirrectly i copy pasted it in and deleted the old user and usermeta define lines in sf_includes. and it didnt recognise the inverted quotes.

Anyway i tried uninstalling and installing again to make thye changes but can’t activate the plugin

Plugin could not be activated because it triggered a fatal error.

EDIT: Fixed that by deleting plugin and reuploading it. It works now