I bought an iMac 27' which was running on OS 10.7.2. In order to make a backup of all my important files, I used Get Backup Pro and build a backup (incremental) and I saved it on my NAS. Few weeks ago, after a problem, my iMac was replaced for a brand new one. I re-installed GetBackup Pro and I wanted to restore my backup. Unfortunately, even if I was able to "locate" the backup, I cannot restore it as the button is greyed out. I can see some files with the .tar extension but again they are greyed out and I cannot choose any.
I did some researches on this forum but I haven't found a solution which match with my situation.

Any help will be apprecited.

I didn't find the right solution from the Internet.

Product Video Production Studio

Thank you.