SNMP get for Counter32

All,

I try to monitor CIFS connected users to the storage.
There is exists the following counter:

C:\Temp>Snmputil.exe get storage public .1.3.6.1.4.1.789.1.7.2.9.0
Variable = .iso.org.dod.internet.private.enterprises.789.1.7.2.9.0
Value = Counter32 122

When I added this oid into template and applied template to the storage device, OpManager can't get this value.
I see strange values like '0', '1' or very big.
But the current value should be approx 100.

I tried to add this counter as '.1.3.6.1.4.1.789.1.7.2.9.0' and '.1.3.6.1.4.1.789.1.7.2.9', but it didn't help.

I can easy obtain this counter in snmp browser by these oids.

Any comments ? How to fix that ?

ps. I see the following values in perf monitor:

Date Time cifsConnectedUsers Users

Dec-7-10 21:00 4.294967288E9

Dec-7-10 20:30 4.294967286E9

Dec-7-10 20:00 4.294967295E9

Dec-7-10 19:30 4.294967286E9

Dec-7-10 19:00 4.294967288E9

Dec-7-10 18:30 4.294967293E9

Dec-7-10 18:00 4.294967295E9