[drupal-support] Can't download attachments?

[Cheryl Chase]

I've just installed an instance of drupal 4.6 (I'm running several  
live copies of earlier drupal versions). I've enabled upload.module,  
and a user has uploaded an excel spreadsheet. The file was correctly  
uploaded, and I can see it in /files. I can also see it when I click  
"edit" for the node.

But when the node is displayed there is no download link, and no  
indication of an attached file. How are visitors to download? Problem  
in Permissions? Theme?