Because you seem to have alot of problems, here is a guide!
1. you HAVE to register on their website! (No creditcard number or other bs stuff needed)
2. You will get a email with a link to approve your account. And then wait awhile because these guys accept every member manually so can take a couple of minutes, maybe an hour.
3. click the download button on the site, and pick the windows or mac version.
4. Now you take a chill-pill and dont click any advertising or any other junk download link. You just wait for 10 seonds and then klick "skip advertising" or "skippa annonsen" in the top right corner.
5. Now you should be on the Mediafire.com site and be able to click the sledsimulator download button (95.97MB)
6. Extract the file on you computer (with for an example winzip) and click the Sledsimulator exe-file.
(there should also be music, saves, screenshot, sledsimulator, Readme and controll files after you have extracted it.)
7. Play the game and enjoy! Rembember that it is in alpha stage.
AND it´s no scam. A couple of guys on the swedish snowmobile forum,
www.snowmobile.se made it.
edit: And here is a video from some guy testing it
https://www.youtube.com/watch?v=EBvkwxnhPkg