This is most unusual. I know I posted about this again yesterday, but for some reason I cannot find it now.
There are Javascript errors which results in a breaking condition in the editor. According to your server, the following files are missing:
/clientscript/ckeplugins/vwattach/plugin.js
/clientscript/ckeplugins/vwlink/plugin.js
/clientscript/ckeplugins/vwtable/plugin.js
I have confirmed that these three files exist in the ZIP you got from us. Either they were not uploaded, or Apache cannot locate them, because your site gives a 404 message when trying to access them. Please make sure these files are on your server. If they are not, please upload them.