GPSmap 60s - Custom Symbols and the Blue Flag!

Perhaps someone can help me out on three fronts:

1. How do you change the default blue flag symbol to something else in Basecamp 3.1.1?

2. Basecamp recognizes my GPS unit, but doesn't under Edit/Manage Custom Waypoints. It says "No Compatible GPS was found"

I found a thread on another forum from 2010 indicating that Garmin was working on this.

3. Are there custom symbols available for the GPSmap 62s for downloading?

Thanks for any suggestions or advice,

DAF7