If I understand you correctly, you have a Clone of your original internal HDD and a Time Machine HDD that backed up the Clone. If it backed up the Clone HDD and deleted the prior backups, then your data is gone. If it backed up the Clone for only the changes made since the Clone was created, the data should be there.
Open Time Machine and see what actually is there. If you cannot open it, Click on the Time Machine icon on your desktop. It will give you a display showing one folder (Backups.backupdp). Open that folder and it will show another single folder. Open that one and it should display folders that are dated for each day/week that backups have been made.
If there are 'old' folders in there, you can access the data by opening then up as the image below indicates:
It may be tedious, but it is better than not having the data.
it turned out that it was easy enough to just delete the last update (which was indeed the 6 month old clone-drive- i guess time machine backs up the drive you booted from, not neccessarily the hard-drive whose name i assumed it would search for) and then when i went to transfer the data, time machine saw the last update which was of the REAL hard-drive and only 10 days old. not much was lost. genius bar answered question...