SQL Cluster running at 97% memory utilization after Windows 2003 SP2 install

I know SQL 2000 is ancient history but we've just recently installed Windows 2003 SP2 on a SQL 2000 cluster (plus a firmware update and hot fixes). These servers have 32 GB available and SQL is configured with AWE enabled and max server memory (MB) of 30,720 MB. However, since the update, the monitoring system reports a consistent 97% memory utilization. This is regardless of which node is active - it happened on both.
Our server team has an open call with Microsoft but right now, I'm puzzled by the math. If we've given SQL a max server memory setting of 30 GB and 32 is availble, I would think our monitoring system would have been reporting ~93% memory utilization prior to the update. I'm wondering whether the memory utilization was this high (higher with what the OS is using) all along but that the memory counters might have been fixed in SP2 or one of the hot fixes.
Note: We're not seeing application issues right now but this cluster has recently had a couple of odd episodes where the app has become unresponsive, SQL eventually is not accessible and failover was required.

What monitoring system are you referring to? Are you getting this from Task Manager?