Integration

hi frendz,
i'm facing some problem with FTP put operation. The Get operation(reading a file) is working fine. i'm using Apache FTP server.FTP User is having all read/write permissions. When i putthe file using FTP command prompt then its working fine. But using BPEL/FTP adapter put operation is not working.
Main thing is its not giving any error but When i check the directory then i dont fine any file ther. In fact BPEL process is detecting directory where i'm going to write the file. But after completing the BPEL process i dont get any file.

i am using opaque fomat. n just passing some data into input string which i'm assigning to <invoke>'s variable.

Thanks a lot
-Mishit