If you selected your Track in the List and then pressed "Send to Device", when the transfer window came up you should have already had "Tracks" checked. Press Send and the Track will have been sent to your 60CSx. Works the same in MapSource as Jerry noted but I think the terminology is: "Transfer"->check Tracks-> Send.
I think what you are asking though is how to find your Track on the GPSMAP60CSx.
1. Press MENU twice to open the Main Menu.
2. Select the Tracks icon, and press ENTER to open the Tracks Page. You see the name of your Track (as Jerry noted, not the file name on your computer).
Hope that helps...you might also look over the manual as it's OK for basic feature/function "how to".
DRTBYK screwed with this post 07-11-2011 at 08:41 AM