You should be able to easily. I can download from another browser when I'm not logged in to this site. I have placed no restrictions on downloading these files, so if you have an issue I would try...

If im not a supporter I cant download?

After upstream website was gone https://web.archive.org/web/20120320162146/http://ste.sintegrial.com/pages/en/index.php Looks like the 0.4.0 source-code was uploaded to...

5 average

9 excellent