Uploading Files to WD

Please help…

I am struggling to understand how to simply copy and paste files to my worldbook ii.

I can see it on my network via my pc under computer: Public (\wd My Book) (Z:)

With files:                    Shared Music, Pictures and Videos

If i try to paste a file into these folders using this Z: Drive it says “you need permission”

I then try right click on Z: and properties and change permissions it says “access denied”

Is there meant to be a program to assist with copying, pasting and editing files.

Thanks hope you can help

I would suggest that you obtain administravtive privilages and then goto the network storage manager and edit your folder permission take a look at this link for instructions