Public folders and sharepoints oddities

[delis]

Hi,

I'm having some problems accessing the standard public folder of os x (~/public/drop box) as a quest through LAN.
Particularly, although i can drop files in the drop box, when trying to drop a folder in that directory i get the message "the folder could not be created".
Is this normal? Is the drop box capable receiving only files but not folders?
I have the same problem with "drop boxes" (write only permissions to anyone) in other shared folders i've created with the SharePoints (pref pane or/and app).
Considering SharePoints, i can't anymore disable the standard public folders.When trying to connect as quest through Lan, the Users public folders are still there as a choise! Notice that i perfectly remember i had managed that in the past with the same app/pref pane.
I'm using os x 10.4.9 on an emac and the other computer in the network is an os 9 imac g3.
Hope you can help me.
Thanx in advance.