ANDROID Modifying JCV for streetpilot

I need to change my jvc file to be in this format (212 * 234 version split screen) (jcv_Nuvi-30,40,50-Android SP)
Any help?
I already uploaded my jvc file to this link:
http://www.mediafire.com/file/adp0jm...8e4/GCCJCV.jcv

Either modify it then upload the corrected jvc file OR teach me how to do that :)