add
[link]
Server = ftp://ftp.archlinux.org/tur/link
to your /etc/pacman.conf and do a
pacman -Syf ati-drivers
// STi
]]>Another solution is to use rpmunpack (pacman -S rpmunpack).
]]>As far as using an rpm package manager, Archlinux has its own package manager (pacman), and it is not rpm based.
]]>