If you do not use AFP-Reporter, and if you need a free Photo / Caption/ FTP editor :
1/ Download XNVIEW (portable)
2/ Choose your language (arabic supported) and install it where you want it (on the desktop for exemple)
3/ Navigate in your image folder, choose a picture
4/ To write a caption: hit keystroke CTRL+I, and fill in the fields (Tutorial)
5/ To send it by FTP : Go to Tools/Plugin/FTP. Enter your credentials. If you don't have them, ask your bureau chief or photo editors.