Hide the "Create an account" button if registration is disabled (Enanium only, but there is a template boolean called "registration_disabled" so other themes can use it too)
tinyMCE.addI18n('en.paste_dlg',{
text_title:"Use CTRL+V on your keyboard to paste the text into the window.",
text_linebreaks:"Keep linebreaks",
word_title:"Use CTRL+V on your keyboard to paste the text into the window."
});