Down loaded map questions.

I have down loaded a few maps and can not get them to play. I load the game like normal, and then try single player or multi player on lan and single mission etc. No new maps in either location. I have tried placing the maps in

C:Program Files (x86)CodemastersOF Dragon Risingdata_winmissions

&
C:Program Files (x86)CodemastersOF Dragon Risingdata_win

&
C:Program Files (x86)CodemastersOF Dragon RisingMission Editor

Each of the maps is then in its own folder that if you open has items such as mission_image ui_data etc and another folder named scripts.

What am I doing wrong?