That tells me that you have your KMA files in different folders.
Use Windows Search (Start > Search > All files and folders) and type in "*.kma". This will tell you where every KMA file is located.
Once you identify the folders your KMA files are in you can:
A. Find the folder that has the files you want to copy in it, use the browse button in Microstudio and select this folder or
B. Put all of your KMA in one folder, go to Hoster > Tools > Songs Database > Rebuild, and rebuild your database. Be sure to select the folder you put all of your KMA files in and delete the other folders. This is how I do it.
I hope this gets you one step closer.
Jim