well im not sure about pre OS3.9 and rawbinfo but I do know that with rawbinfo you can do this....
click on the icon's in question (one at a time obviously). Then using the right mouse button menu goto, icon/information. The icon information will popup.... then using the right mouse button menu in that goto type, and change its type to a drawer. Thats it! click save and its sorted... well hopefully

There is another way by loading in the icons into iconedit and using that to change its type if the above method doesnt work... I havent used a pre OS3.9 OS for any length of time in ages....
One day I will get payed for this ;-)