Now you can plan and organize trips with MapSource, a very useful software.
ITN Converter converts routes between different file formats.
Create waypoints, routes and tracks on maps and upload to your GPS device.
Please follow the link http://cznic.dl.sourceforge.net/project/kmlcsv/Release%202.2.1/KMLCSV-Converter-2.2.1.exe to download the program for 32-bit.