No video driver after reformat

i have a problem with my video driver !
it says that my system doesn't have a video driver ! i formatted my computer a few dazz ago , before that it used to work fine , now after i formatted my system ,none of the games r working ,there is always a error msg when i try to run a game saying "send error report"
Recently when i installed a f1 game it said: CUBE 3D setup cannot be run on this computer . no directx video adapter found. please contact your video card vendor for updated drivers.
My pc configurations :
Machine name: XPWINDOWS7
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.100427-1636)
Language: English (Regional Setting: English)
System Manufacturer: Hewlett-Packard
System Model: Compaq Presario C700 Notebook PC
BIOS: Default System BIOS
Processor: Intel(R) Celeron(R) CPU 550 @ 2.00GHz
Memory: 1014MB RAM
Page File: 888MB used, 1546MB available
Windows Dir: C:\WINDOWS.0
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: None
DxDiag Version: 5.03.2600.5512 32bit Unicode

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DirectX Debug Levels
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Direct3D: 0/4 (n/a)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (n/a)
DirectMusic: 0/5 (n/a)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

Under the display option it says
1.the system is using a generic video driver . please install video driver provided by the hardware manufacture
2.to test directdraw functionality click the "test directdraw" button above . (it worked properly , though i m not sure if it is really working or not )
3.direct3d functionality not available , u should verify that the driver is a final version from the hardware manufacture .
nvidia.com/Download/index5.aspx?lang=en-us <<
i saw a similar(close) problem n one of the expert from this site sent him to this site to download the software's am i supposed to do the same ?? if yes is there particular product type n product type which i should download ?? plz help,sorry for taking a lot of space to post my problem , thank you in advance !!
 
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