That doesn't answer the question - is the BIOS reporting the hard drive as present?

i can't get i dont know what is SATA

Does the BIOS (F2 at powerup) see the hard drive?

if i goes to BIOS {hard drive}

it say's BOOTMGR missing

press ctrl+alt+del

yes hard drive is present

it show's tat 320gb hard drive is present

The problem is that the Windows Vista install process requires a Serial ATA (AHCI)hard drive controller driver for the Vista install routine to "SEE" the SATA hard drive.  See the definition of SATA and AHCI HERE  The hard drive controller is not native to the Vista operating system and requires a driver that you can download HERE <ADMIN NOTE: Broken link has been removed / replaced from this post by Dell>

At the screen where no hard drive is seen, there is a button at the lower right to load drivers.  Download the file in the link above, extract the files to a USB key, then load them on the system you are installng Vista to.

yes i had tried tat also same error previlles