Enable tracing

hii..
i m using OAS10g,want to enable tracing through form level...ie trace a particular user.
i made the user to use the following link to load his application so that i can creat a trace file in my $ORACLE_HOME/forms/trace...
ie http://ip adddress:7778/forms/frmservlet?config=xyz&record=forms
but to my surprise no trace file was generated.
should i need to add some parameter in formsweb.cfg..
for enablin tracing at form level
i read some article and it stated
http://download.oracle.com/docs/cd/B14099_19/web.1012/b14032/tracing002.htm
In order to trace Forms Processes on Windows, the Process Manager Service needs to have the check box "Allow service to interact with the desktop" selected.
but i neva got any check box wen i went from my em console..
please help,its bit urgent
Regards
Fabian

Ya,
i have deployed a war file..rite i solved the problem of tracing...
now the problem i m facing is
I generated the trace file..since it is in binary format want 2 convert it into xml format
so i apply this command
java oracle.forms.diagnostics.Xlate datafile=forms_10524.trc xmlfile=myfile.xml
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/forms/diagnostics/Xlate
i searched on google about this error...
And it stated include the name in class path..and library path
but i dont have this location at all???oracle/forms/diagnostics/Xlate???
Do i need any jar files for for running this command(xlate)..
please help itz bit urgent
Thanks in advance
Regards
Fabian

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I am relatively new to oracle reports and report builder.
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**************************** Some Notes ****************************************************
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<p>Did you read this paper ?</p>
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>>, it is showing error ORA-12353 Timed out.
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