sapinst does not work

I am trying to upgrade SQL server 2000 to SQL Sever 2005 and trying to

run the tool called "SAP tools for SQL Server" with sapinst as applying

note 799058. getting following error message, please help

SAPinst is getting started.

Please be patient ...

starting gui server process:

sapinstport: 21200

guiport : 21212

guistart : true

command : "C:\WINDOWS\system32\javaw.exe" -cp "C:/DOCUME_{1/prdadm/LOCALS}1/Temp/1/sapinst_exe.5904.1193775441\jar\instgui.jar;C:/DOCUME_{1/prdadm/LOCALS}1/Temp/1/sapinst_exe.5904.1193775441\jar\inqmyxml.jar" -Xmx256M -Dsun.java2d.noddraw=true SDTServer config=jar:sdtserver.xml guiport=21212 sapinsthost=localhost sapinstport=21200 guistart=true

guiengine: call to bind() for socket 21200 1724 failed . No error

103 guiengine.connection.failed 21200, 881

Exit status of child: 1