Creating a bootable USB external hard drive with Windows server 2003 OS

hi there,

i was trying to install Windows Server 2003 on 250 GB USB external hard drive

while i am booting i have selected the option F6 and i have got the display as provide the necessary OEM drivers for the device for further installation and that too it is asking those drivers source from A: floppy disk

and then what i have done is, i have placed some file inside the floppy disk and made the boot again

then it asked me to give the write file name what it want as “TXTSETUP.OEM” file

so of any body tried this one, please inform me

and also suggest me any other way to achive the installation of windows server 2003

thank you