by Juan Leyva.
Hi,
How did you upload this files in Moodle? As a resource mini-site? in a resource type directory?
What do you mean with they can't be downloaded? you see any error? you don't see the option for download the files?
Please, we need detailed information to see if this is a bug or an unsupported feature, it will be good if you can attach a sample content too.
Juan