Molding problem ..I NEED HELP

I am trying to make a mold cavity for this part that i haveattached. only problem is...i dont' know how to use the advancedmold features in solidworks. I could make the cavity if the partwas flat, but because of the 3d curves i have no idea how to createthe split line. could someone PLEASE HELPSolidworksParts And Features