Hi,
You could try the following steps:
1. Install Tools in your Ubuntu 13.10
2. Open Settings from Fusion menu -> Virtual Machine -> Settings
3. Select Sharing on the Settings panel
4. Enable shared folder by click on/off button
4. Click Plus button and then select folder that you want to share with the VM
5. Click Add, now you'll see the shared folder in the Shared Folder list
6. Go back to the VM, you'll see the shared folders under /mnt/hgfs/...
Harry