I downloaded this to the wp-plugins via wget.
unzip will not unzip it, although the lite version worked fine using that direct download and unzip I get the following message.
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive."