You should be able to restore data from the old archived. the Data is stored in a folder with both the full and incremental backups.
Each time you performed a full backup you created a new folder with all current watched files being archived.
To restore these files all you need to do is open Data Backup and change the location that the restore section currently points too.
By default this section points to the most current archives.
Once you change the restore location you can review the files in the archive and either restore then all or select a specific file.
There are many articles published on our support web page the cover Data Backup and Restore.
This one should help you understand the archive file names and structure. TS100586
I checked for other FAQ on restoring files and found that it needed updating, The information is available in the help files however I have updated the article.
A new version should be posted soon. TS100182