Ahhhh just remember something,
I think you need to change a setting in your php.ini
Because this module is over 2mb, some server have the upload_limit set to 2mb, this is why you cannot install it, because the file is not on your server.
You can change the setting in the php.ini
upload_max_filesize = 10M
or upload the zip to your server with FTP and use the second or third option to install it (Install from Directory or Install from URL)
Let me know