Problwm with output type and RSNAST00 program...down loading files

Hi experts,

I was given the variant Rbus-01 for RSNAST00 program...

and asked me to debugg RSNAST00 program to find out

where the program is depositing/downloading the files ?

I cheked in debugging, the RSNAST00 program is calling one Z- driver program and form layout.

My functional consultant said to check that the files were not down loaded in the expected specified path after running the job using RSNAST00 program. I have checked in Zdriver program but no code related to down loading.

He says that the output type is "ZFEU" which is configurred in nace t-code to archieve ( in Storage Mode is set as archive only ) ....so that the RSNAST00 program, instead of going to printer, files should go to arhiving path. But no file is going for archiving path... that is the problem. I put break point in RSNAST00 program, which is of no use ....Where can I debugg & using output type "ZFUE", How to find out what is happening ? in Vf03 I have checked output type.

Does RSNAST00 program has the provision of downloading capability instead of printing ?

How to find out the where the files are getting down loading

OR

why files are not down loading in the specified path.

Thanks in ADVANCE.