Dual booting Linux 6.1 with Windows 98

Sir,
I have dual-booted linux 6.1 with Win98 many times but that was always on 10 GB Hard drives.This time i am doing it on a 40 GB hard drive and after creating a primary partition of 10Gb and installing Win98 on that i am not able to create linuxnative or swap partitions.And in
case i use the linux fdisk utility and create these partitions manually i am able to install linux but after that linux is not able to write to the boot sector – so i don’t get the lilo boot option.
Can u help – please.
Regards,
Seetha