How can I put my objects into odf and msh folders?

Honestly you're going to need to be much more specific. What kind of objects are we talking here, ones you made with a modeling program or downloaded, or objects specifically made for this game? If the are already in SWBF .msh format, they go under ...\data_***\Worlds\***\msh for the object textures and .msh files, and ...\data_***\Worlds\***\odf for the odf files (where *** is your map's three letter code). If the aren't already set up for the game, some conversion work will be needed, but you should be able to find out how by searching around this site. By the way, this should go in "SWBF 2 Modding" and not "Map/Mods In Progress."

like sim said you need to be more specific. When I first read what you said I thought you were trying to add a custom model. I do a lot of custom model work with blender so if you have any problems with 3d modeling, just go to the 3d modeling forum or contact me if you wish.

Thanks!!!