Hi Amos,
Sorry to hear that you are having difficulty in streaming the recording. It might be the bandwidth in your location. I also share below the link for download if you want to try.
Streaming link: https://wmo.webex.com/wmo/ldr.php?RCID=22cb13b7b5cad65d85037ad6a199e096
Download link: https://wmo.webex.com/wmo/lsr.php?RCID=9d7505d5157410fa998e7548b55ad9fb
Regarding your second question, you may wish to visit the Book "3.1.5 Using ratings in forums" in "Unit 3: Provide opportunities for dialogue and reflection" which was linked from CALMet Online, just above the forum.
Mustafa