Have you configured unixodbc?
http://wiki.freeswitch.org/wiki/Mod_spidermonkey_odbc
covers configuring odbc in detail.
2009-03-14 14:55:47 [ERR] switch_odbc.c:164
switch_odbc_handle_connect() STATE: IM002 CODE 0 ERROR:
[unixODBC][Driver Manager]Data source name not found, and no default
driver specified