Netflow Analyzer mib will not import to my NMS

Hi,

We have been using Netflow Analyzer 7 Professional for some time, and we've recently started setting up alerts to send and SNMP trap to our NMS.

I've tried importing the mib and I'm receiving the following error in my NMS:

Cannot load definition for ADVENTNET-NETFLOWANALYZER-MIB
unknown type Unsigned32 in module null while loading <MibModule ADVENTNET-NETFLOWANALYZER-MIB src=.\mibs\Adventnet\ADVENTNET-NETFLOWANALYZER-MIB>

From this error i Believe the problem lies in the fact my NMS does not recognize this Unsigned32 as valid syntax. Here's the part of the MIb that this corresponds to:

noOfTimes OBJECT-TYPE
SYNTAX Unsigned32 ( 0 .. 4294967295 )
ACCESS read-write
STATUS mandatory
DESCRIPTION "Alert Threshold: No of times uitization exceeds the specified limit"
::= { appUtilizationAlertInfo 7 }

inMinutes OBJECT-TYPE
SYNTAX Unsigned32 ( 0 .. 4294967295 )
ACCESS read-write
STATUS mandatory
DESCRIPTION "Alert Threshold: Minutes with in which the utilization exceeds the no of times specified"
::= { appUtilizationAlertInfo 8 }

Any advice you have will be greafully apreciated!