Can you confirm the VM's .vmx file contains:
scsi0.virtualDev = "lsisas1068"
and the virtual disk (.vmdk file) is connected like to a scsi controller:
scsi0:0.fileName = "Windows7.vmdk"
If this is the case, you could try to run the Converter again, but selecting "Configure Machine" (rather than convert) and select the newly crested VM. Maybe this works and straightens up the configuration. At least worth a try!?
André