Thank you for the post.
To know for sure which version of Java is being used:
1. Uninstall Java 7 update 17 from the Windows Control Panel > Programs and Features
2. Leave only the latest version of Java or reinstall the latest, Java 7 Update 21
3. Check to see if Java is working at the following link:
Please let me know if any of the above steps need further clarification.
Thanks TSFalcon. Was concerned FMS was hardcoded to use update 17, but have uninstalled that version, rebooted to make sure, and everything's still working.