You will have to call tech support and see if they have those still available. I'm sure 12, but I'm not so sure about 10.
Old version are still available for sell on amazon. If you can't find it anywhere.
I hate to ask this, but do you know why they disappeared? This isn't something that can happen easily on either windows or OS X.
Have you tried a full restore of the disk?
If this is OSX and the backup is a time machine backup, you should be able to have the migration assistant install programs only and have it pull in all of your apps.
Sent from my mobile device... Please excuse typos.