Secure password authentication

[victor]

I try to install libsasl2-plug-ntlm-2.1.15-5mdk.i586.rpm on mandrake 9.0
but I can't satisfy the dependecies.
Installation failed:
        libsasl2 == 2.1.15 is needed by libsasl2-plug-ntlm-2.1.15-5mdk
        libc.so.6(GLIBC_2.3) is needed by libsasl2-plug-ntlm-2.1.15-5mdk
        libcrypto.so.0.9.7 is needed by libsasl2-plug-ntlm-2.1.15-5mdk

Where cound I find the sources?
Is there a easy way to install this plugin?
Thank you.