on mac keyboard, keys \ and < work correctly. In Win7 virtual machine they are inverted.
Language specific settings on/off doesn't change the result.
For your information, Fusion 7.0.1 was just released and the release notes mention a fix in this area.
VMware Fusion 7.0.1 Professional Release Notes
You can download it from Download VMware Fusion 7
Or you can use the update button under menu VMware Fusion -> Check for Updates
Hope this helps,