Downloading Subfolders, etc.

All right, I need to download a series of folders and subfolders from a site systematically.

With, Downloadthemall, I could download all of the links that all of the pages had, however, it will not retrieve subfolders and files in those subfolders.

What firefox plug-ins/apps can I get to do this?

Also, I need to download all of the .rm files from this index : http://mail.sportsstuff.com/towables/ for a video project I am working on. Saving the page does not work, downloadthemall does not work, I need to know how to save the folders and subfolders and etc.

Thanks for reading.

wget