Give this a try:

SET BUFFER 300
SET linesize 300
SET PAGESIZE 75

column sid format 999
column serial# format 9999999
column username format A20
column user# format 99999
column osuser format A15
column ORAKILL_DBSID_THREAD format A25
column MACHINE format a25

Prompt ****** c:\oracle9i\bin\ORAKILL ORACLE_DATABASE_SID THREAD_NUMBER
SELECT 'ORAKILL '||(SELECT instance_name FROM v$instance)||' '||SPID||'' "ORAKILL_DBSID_THREAD",
s.sid, s.serial#, STATUS, s.username, OSUSER, MACHINE, s.TERMINAL
FROM v$session s, v$session_wait w, V$PROCESS p
WHERE s.SERIAL# <> 1
AND s.sid = w.sid
AND s.paddr = p.addr;