Hi
As far as I know, you should just be able to remove the RPM via the Mandrake package manager (can't remember what it's called) and then just untar the tarball somewere
Code:
$ cd <path to directory containing tarball>
$ tar xzvf <filename>.tar.gz
This will create a folder called <filename>, cd into it, and {if I remember correctly} you don't actually need to compile it, so just run ./amsn
1337_penguin