Thanks to moonman who dropped me the older version of ArchLinuxArm!
I will try to install it later, as I've figured out there must be something wrong with the current mldonkey compiled from the AUR. So I still need a compiled mldonkey which was published in community packages last year... BTW, I am installing it on a Seagate Goflex Home.
I appreciate you a lot if you happen to have this package and would like to share it to me! Thank you!