The extension of the Oracle report will be *.rdf (Report Definition File).
You place the Oracle report on the corresponding application top in the reports folder.
Generally we place the newly developed reports in Custom top. $CUSTOM_TOP/reports/US
Move the fmb file into :-
Keep the new form (renamed) in au_top/forms/US
You can trace in Oracle application Help menu.
Start Oracle application Goto Help
Help->Diagnostics->Trace-> Regular Trace.
will ask for Apps Pass. Wil Show Not dialog Box which Gave you the path of Trace file. FTP the Trace file.
There are 3 tier of Internet Architechture of Oracle Application 11i.
1. Desktop Tier
2. Database Tier
3. Application Tier.
1. Fnd_File - PL/SQL I/O
2. Fnd_program - Concurrent Program Loaders
3. Fnd_set - Request Set Creation
4. Fnd_request - Concurrent Request Submission
5. Fnd_Submit - Request set Submission
6. Fnd_Request - Info
and so on...