Using Lion time machine to recover files to MacBook Pro running Mountain Lion
In order to partition my "vintage" MacBook Pro to run Bootcamp, I've had to go back to the previous OS (Mountain Lion), and before erasing my hard drive I did a full backup to Time Machine. Once I connected the external HD to the "mountain lion" laptop and I went to the Time machine, and was prompted to start it up. After a backup process I looked at my time machine disks and see the backup, but the times prior to this last backup are greyed out. If I go to each prior backup session I can see the files and even copy them to my laptop, but they won't open. I receive a prompt to install them from the original disks.
I don't seem to be able to recover files from the Lion Time Machine backup to the Mountain Lion.
Is there a "trick" or workaround.
Thanks
MacBook Pro, Mac OS X (10.6.8), vintage model