If you launch Winclone 6 and do not see any items in Sources (except for "My Mac"), you can try the following items to resolve the issue. Note that Winclone is not "frozen" or "locked up".
1. Open Disk Utility and verify the boot camp shows up. If it does, make sure it is mounted. If not, click the "Mount" button:
2. If the volume is mounted, click the (i) in Disk Utility and verify that it is NTFS:
3. Finally, open the Boot Camp partition in the Finder and verify that you can see files and folders and that there is a Windows folder: