The best way to do this is to subscribe to a WebLearn calendar (rather than import) so that new events or changes to existing events are reflected.
First of all, the ”Schedule” on a site needs to be exported (click on the ”export” button). Copy the URL of this calendar into the address bar of your browser, then change ”’https://”’ to ”’webcal://”’ and press return. You should see a dialogue box appear asking what external program should open this file, select Outlook (or Sunbird or Thunderbird (with the Lightening plugin) or Entourage). The calendar will then open in your mail client.
These resources may be of some use: