Accepted AnswerAlso disable loading of jQuery in K2,
some extenssion called gspeech,
Let me know if you need further help with this.
You missed the information about PHP 5.2 when you dowloaded the plugin, anyway, I released a new package for PHP 5.2 servers, so download and install that new version.
you will not be able to run Joomla 3.0 when it is released on your server.