9.2 Intelligent Agent issues on Solaris 9

In an attempt to stay in front of the tech curve, we've built an
environment on Solaris 9 and Oracle 9.2 & 8.1.7 (in production). While
building a supporting OEM config & events, I've learned that no
intelligent agent is certified on Solaris 9 - OUCH! When I start the
9i agent I get the message:
   "Required configuration file snmp_ro.ora not found"
I've checked the basics to get this to work but my buddies at Oracle
won't discuss a non-cert platform. "agentctl start agent" does
generate the file snmp_ro.ora and the rw file in
$ORACLE_HOME/network/admin. $ORACLE_HOME/network/agent and .../admin
is owned by my oracle 920
account, ora920. I see the dbsnmp process running and the
$ORACLE_HOME/bin/dbsnmp file looks like:
-rwsr-s--- 1 root oinstall 3250936 Oct 9 10:39 
      /u01/app/oracle/product/9.2.0/bin/dbsnmp
Has anyone pulled this config together?