Upload video covers in mythweb

Hello,

I have a little problem with mythweb:
http://www.gossamer-threads.com/lists/mythtv/users/567494

I write in mythtv list, but there is no reply. I want to know if
someone could upload video covers from mythweb interface.

I try different folder, different permissions, but nothing.

Thanks.

--
Josu Lazkano