I know this is a wild idea, especially for the typical macho male pilot (stereotyping sarcastically...), but why not just read the E6B Instruction Manual. It will take a couple hours, but the stuff is pretty self explanatory.

You might also read the planning a cross country section of any well known private pilot flight book.

You can also visit my website: Flight Training Online Resources & Tools - Evolutionary Flight Training
Login using Username: Demos0001 and Password: Demopass or register for free. Once in follow the link for Private Pilot Course. Tabs will appear at the top, click the tab for Practical Course and then find lesson 42 on cross country.

In the lessons review you'll notice reference to stage 5 lessons. The lessons referred to are lesson 31-39. Particularly 31-36 as they introduce each particular phase of planning a cross country flight. You still have to read the manual to use the E6B, but this will walk you through when to use it, just like those books will.

Good luck.