no, its IBM's messed up BIOS for their old laptops thats the problem,been here before, and had problems too
the cdrom driver your using if I remember right WILL work, BUT, it wont allow hotswapping the floppy drive in its place
also, having tried IBM's tech support line one day for about 8hrs I got nowhere so they are useless, and they require the thing gets shipped to an "IBM shop" to deal with something simple as this
basically waht you need to do is just substitute the IBM cdrom driver for the windows/DOS one, they are named the same I believe