Question on adding atmMIB.atmInterfaceConfTable in netsnmp agent

Question on new mib and agent support to netsnmp version 5.3.0.1 in Red
hat Linux kernel. 

I have followed on-line tutorial instructions and ifTable example for
using mib2c.mfd.conf to configure, build snmp agent with add-on
atmInterfaceConfTable snmp agent support as configuration below. Sent
snmp request to walk through ifTable and system tree node with satisfied
results. However snmpwalk did not work for the atmInterfaceConfTable
(1st table in atmMIB). I got "No Such Object available on this agent at
this OID" all the time no matter what I do as below.

>snmpwalk -v2c -c public localhost atmMIB
  atmMIB No Such Object available on this agent at this OID

>snmpwalk -v2c -c pubic localhost
atmMIB.atmMIBObjects.atmInterfaceConfTable
atmInterfaceConfTable No Such Object available on this agent at this OID

>snmpwalk -v2c -c pubic localhost atmInterfaceConfTable
atmInterfaceConfTable No Such Object available on this agent at this OID

I have configured for installation using:

./configure --with-mibdirs="/usr/local/share/snmp/mibs"
--with-mibs="ATM-MIB"
                 --with-mib-modules="atm-mib/atmInterfaceConfTable" 

All atmInterfaceConfTable agent code was originally created form
mib2c.mfd.conf and they were put  in a sub-directory
"atm-mib/atmInterfaceConfTable" under "mibgroup/".

Does anyone help me what I missed here and did wrong? 

Thanks in advance,

Leitrend