Data Recovery

Hello Friends

I am using P4, 2GB Processor & 1GB ram
recently i removed all my 4 partitions and re installed it after taking the data backup to Samsung 40GB hard disk ( the disk contains 2 partitions i.e. fat).

after installing xp operating system i try to restore the data from my 40GB hard disk all the files are showing some machine language.

i consult the hardware engineer he gave me the software Power Data Recovery version 3.

today i try to recover the data using the software, the drives are not showing.

in disk management tool the hard disk showing unallocated partitions.

again i shown to the hardware engineer he make entire 40GB hard disk as a NTFS partition.

i request you please help me
i request you please help me how to recover the data