cannot download update from "http://www.avast.com/rus/updates.html"

Hello!
I cannot download updates from “http://www.avast.com/rus/updates.html
That’s what I get when I push “download”:

404 Page not found

The server has not found anything matching the Request-URI.

Request-URI: iavs4pro/vpsupd.exe.

and there is also some kind of variable instead of updates filesize on the site: %vpsupd_exe_len%

Site maintainers, could you please fix this? Thanks!
Vladi.

Download page:

http://www.avast.com/download-update

Chubb, thanks!
It didn’t occured to me the download links could have simply be changed ))