Please consider using a command line tool called
debugfs.
A deleted file is retriveable untill its not shreaded or zeroized (
shread cmd
. its just the allocation table has unlinked the reference to the datablock on the disk.
Now , if you are lucky enough (if newer files have not acquired that data block) ; you might be able to retrive them.
Log into your system as a super user before you start the retrieval process. Look at its man pages too. Its simple enough to use. simple commands like
ls, cp are supported and it gives you a prompt, you may use the
help from there too.
Good Luck!!!!!!!!!!!!