BuddyPress.org

Ok. So my host is Bluehost, and the primary domain on my account is saltbored.com. I have an addon domain sdcityrobotics.org pointing to where my single wordpress with buddypress install is located -publichtml/sdcityrobotics.

I need the site url to always begin with sdcityrobotics as the domain…. examples:
http://www.sdcityrobotics.org/activity
http://www.sdcityrobotics.org/members
http://www.sdcityrobotics.org/groups
etc.

The site breaks if I set the WordPress “General Settings” addresses to anything other than:
WordPress Address (URL): http://www.saltbored.com/sdcityrobotics
Site Address (URL): http://www.saltbored.com/sdcityrobotics

What should the domain configuration be, to change the sites url structure to what I identified above instead of:
Home: http://www.saltbored.com/sdcityrobotics/
http://www.saltbored.com/sdcityrobotics/activity/
http://www.saltbored.com/sdcityrobotics/members/