How can I write to someone who has uploaded a file?

[misterbg3]

There are a few 'typeset' file for which I would like to request the original uploader
for the actual typesetting or XML (Since they are not always available)
Is it possible to message the original uploader? When I click their name I don't see
anything of that sort.

Thanks

[Sallen112]

Click on username, Page ---> Discussion, then new topic.