Here is the output: (just to be clear: this vmdk worked fine with the 2.6.24 kernel and SCSI, It is a SUSE LINUX VM)
qemu: could not open disk image /var/lib/vz/images/108/vm-108-disk-1.vmdk
start failed: command '/usr/bin/kvm -monitor unix:/var/run/qemu-server/108.mon,server,nowait -vnc...