Thanks Ken for the response..
I would additionally like to find out if the following protocols are supported by Sametime oo-
I have read about LTPA SSO based authetications. My intial impression is that since Domino supports windows integration it might support Kerberos and NTLM.
Also it would be great to know if Sametime supports AES (Advanced Encryption Standard) as proposed for U.S. Government agencies - http://www.nist.gov/aes
.It specifically asks for Rijndael algo support.