I Omega Super Slim DVD Burner 98 boot problem

Hi this is ravi and new to this forum.i have just posted 1 thread about overclocking.this is my 2nd.
Ok! my prob is just few days back i bought Iomega external usb dvd writer.im able to format (XP,&,Vista) through this.but im not able to boot into 98 bootcd.i googled and knew that it needs usb drivers.kkk i downloaded usbaspiehci.sys, usbaspiohci.sys,usbcd.sys, usbcd1.sys.....(drivers that supports for usb).and i have done following steps.
I.downloaded 98 boot iso
II.downloaded usb drivers
III.downloaded poweriso

1.opened 98boot iso with poweriso and extracted config.sys file and added lines for usb drivers.

device=usbaspiehci.sys /D:MSCD001
device=usbcd1.sys
cdvice=usbcd2.sys
device=usbcd3.sys...

and saved and added usb drivers into that image and saved it.burned a cd and i booted with cd it is showing no drivers found.gving a:\> fi i see the config.sys file by the command a:\>type config.sys it si showing original config.sys file (when i downloaded 98 boot iso) and i typed a:\>dir it is not showing the drivers which i added.

i have tried some methods like copied all the 98 contents to a folder and edited config.sys file and added drivers no use.

I have to boot into dos or 98 boot cd.because untill unless i boot into dos or 98 boot cd i cant take ghost image.

please help me.
Thanks in advance