in_place_editor isn't working?

I installed the in_place_editor plugin from

This is what I have:

<%= in_place_editor_field :frontpage,
'page_text', :in_place_editor_options => { :rows => '30', :cols =>
'20', :save_text => 'do this' } %>

This is what I get:

<span class="in_place_editor_field"
in_place_editor_options="cols20save_textdo thisrows30">Placeholder
text for the frontpage.</span><script type="text/javascript">

new Ajax.InPlaceEditor('frontpage_page_text_1_in_place_editor', '/

It seems like in_place_editor_options is being co-opted as
tag_options. Am I a moron, or is something going wrong?