1) You said you performed a fresh install, and then "ran the SVN update". I'm not sure what "ran the SVN update" was meant to imply, but that step is not necessary whatever it was. If you are not sure on this point, post exactly what you did and we can go into that a bit more deeply for you to get an understanding.
2) When you add a new dialer to a cluster, you do NOT build it as a standalone and then "just point the DB value to the other DB in astguiclient.conf". You have Two methods for clustering available to you: (1)
http://www.poundteam.com/downloads/Vici ... v1%201.pdf or (2) Be sure to use the STANDARD Vicibox .iso image (NOT the pre-load which is specifically described as NOT for Clustering!) and answer the questions during the install and Vicibox (ie: Kumba!!) will handle all of it for you.
Happy Hunting!
Note: You MUST match the Vicidial Version of the new server to the existing server. That does NOT mean "upgrade", it means MATCH precisely. Vicibox usually handles this for you without effort if you use the Standard .iso