VTune 8.0.1 released in July, 2006 does support Dual-Core Intel Itanium 2 processor 9000 sequence.
The build #449 can be downloaded from premier.intel.com.
No, the build 8.0.245 doesn't support Dual-Core processors - the processors weren't public on the moment of the release (Oct 2005).
The support is available only since VTune 8.0.1 release.
BTW If you havelicense for 8.0 version - it will work with 8.0.1 as well.
In case of dual core machines with dual core processors, should there be two instances of vtune_drv.
My system has 2 dual core Xeons.
I have a feeling that sometimes, VTune is not sampling the right CPU on which the process is running.
I am running VTune 9.0