Attachment module is not working!

Hi,

Installed the latest attachment module (with Drupal 5.2). But it is not working.

I tried to enable the attachment for blog. Once I hit 'submit' in the form of Blog form of Content Type, the page refreshed displayed that the attachment is still 'disabled'. Is it a bug?

Some digging shows that variable_get('attachment_node_', $type, 0) at line 37 of attachment.module always returns 0! It should be 1, since I have already enabled it.

And also, I couldn't find anywhere the the variable 'attachment_node_xxx' is saved in the module.

Any idea.