Apologies to all of our users but, as many of your noticed and reported, there was a problem with the version 4.4.3 release that stopped all uploading. This appears to have been caused by an as yet unexplained and unusual glitch in SVN – our source code repository and versioning system. This would clearly effect virtually all users so we are putting out a 4.4.4 update to correct that issue.
For those intrepid users who prefer the quick route to updating – only 3 files have been changed since 4.4.3. These are:
simple-forum/sf-control.php
simple/forum/library/sf-filters.php
simple-forum/resources/jscript/ajaxupload/sf-uploader.php
Once again apologies for this. We will investigate further.