I HAVE A GOOD WORK AROUND!
While importing into Google Calendar and then Explorting it creates a new URL, VRBO/Homeaway doesnt mark dates as booked. However, when doing same thing through Yahoo Calendar works.
Here are the steps:
1. Paste the AirBNB calendar into your browser - that will trigger an ICS file download
2. Open Yahoo calendar (sign in / sign up if you have to)
3. Click + Next to "My Calendars" and add the new calendar "AirBNB" (or any other name)
4. Click arrow next to AirBNB and select IMPORT and point to the ICS file you previously downloaded. Your bookings will be imported
5. Click arrow next to AirBNB and select Share. Make sure to select "Enable My Public Calendar" and "Generate Links".
6. Copy the ICS link and import into VRBO.
it works!!!!
the above process will require Step #1 and Step #4 to be completed after each new entry..
Hope to hear back some success stories!
Gene