Wikia downloading the wiki

One of the prime reasons that I decided to go with Wikia is that it promised portability. Here are the links to what I know about how to download the wiki. Apparently the photos are not necessarily downloadable, but can be done in a separate step. If I had to take it down and put it up again somewhere else, I could probably do what I needed to do with sed and other linux tools.

Here's how to do the download. It uses one of the "special pages". The first download had to be "requested", which apparently involves manual approval by an admin then I got the link and it seemed to work. Will the download links get updated weekly as promised? I haven't tried yet to find out.

http://community.wikia.com/wiki/Help:Database_download

Here is a page about downloading everything, supposedly including the pictures. I haven't tried it yet though:

http://how-to.wikia.com/wiki/How_to_download_all_image_files_in_a_Wikimedia_Commons_page_or_directory

Now, what is missing from these download options is an upload option using the same file. Maybe this exists, I don't know.