6
i could be wrong about this... but i think you can give certain groups permission to use the module, which lets them enter pddownloads and see the files. but then you can set permissions based on categories or individual files. so they only get the "you don't have permission" message when they click the link.
if you can't do that with pddownloads, you should try wf-downloads. i'm almost positive i had my site set up like that a long time ago.
...
I hate Mortal Kombat