Connectivity problem from Linux to Sql Server 2000 using FreeTDS

Hi ,

 We are trying to connect to SqlServer 2000  from Linux using the
FreeTds , My tds version is

Compile-time settings (established with the "configure" script):
                           Version: freetds v0.64
    MS db-lib source compatibility: no
       Sybase binary compatibility: unknown
                     Thread safety: yes
                     iconv library: yes
                       TDS version: 5.0
                             iODBC: no
                          unixodbc: no

When i try to connect using  "tsql -H10.182.92.68 -p3531 -Uibia_ir
-P[password]" I am getting the following error

locale is "C"
locale charset is "ANSI_X3.4-1968"
Msg 18456, Level 14, State 1, Server , Line 0
Login failed for user 'ibia_ir'.
Msg 20014, Level 9, State 0, Server OpenClient, Line 0
Login incorrect.
There was a problem connecting to the server

I am able to connect to the sqlserver using the same username and
password from "SQL Query Analyser" and I am also able to do connect to
this server from Linux using "telnet"

Please help me to solve this issue.

Thanks,
Prasanna
P.S : I did see the same problem in the list , but the solution does not
suits me