Hi Brianna,
about "Can you tell me, is it possible to download the screencast files?"
Yes, you can download them from
http://media.skoffer.com/<skofferid>.flv (<skofferid> has to be replaced with the video-id)
If you want you can also download thumbnails of the videos in 240x180 and 600x450 pixel sizes from: http://media.skoffer.com/thumbnails/240x180/<skofferid>.jpg http://media.skoffer.com/thumbnails/600x450/<skofferid>.jpg
You don´t have to, but it would be nice if you put a link to http://www.skoffer.com on your site, if you use and like Skoffer.
Warm regards, Stefan
PS: Just in case you wonder where to get the video-id. The MediaWiki plugin inserts the video-id to the text input form on the edit page after you recorded and saved a screencast. If it inserts "<skoffer>123456</skoffer>" then 123456 is the video-id (the real video-ids are much longer).