You probably want to use latest VTune 8.0.4 for Linux. It has official support of Core 2 Duo and Quad processors. It also includes fixes for many serious problems so it's definitly worth dowloading it in your case.
yeah, I did not notice you published this in VTune for window forum. You should use VTune 8.0.2 Beta for Windows. See from description: --- The
beta version of Intel VTune Performance Analyzer 8.0.2 for Windows*
is now available. It adds support for tuning the multi-core Intel
Core 2 Quad processors, Intel Core 2 Duo processors, and Dual-Core
Intel Xeon processor 3000 and 5100 series. It also updates the Intel
Tuning Assistant with support for the Intel Core 2 Duo processors. If
you do not require support for these newer processors, we recommend
staying with version 8.0. This beta release (Build 23121) is now
available to licensed customers with a current support contract.A
valid beta license file is also required.