Stop guests hot linking to attachments ?

[The_Head]

Hi members. Im running a torrent mod on my VB4 forum but i cant find a way to stop people hot linking to the torrent attachment or any attachment for that matter.

Do any of you guys know how i could do this ?

Ive tried changing permissions and in my hosts cpanel ive added attachment.php? or attachmentid but they still come up.

So guests can basically use this to download torrents without needing to register.

Here's an example with a image : http://www.thef1society.com/tf1s_for...tachmentid=180

Any ideas ? , its driving me nuts.

Many thanks

Gray