Will it make it easier? Probably not; the update adds stuff or fine tunes what is there already. You have to learn the basics first.
The best way to learn is:
1. Be patient. Mapsource was not particularly intuitive on day one, either.
2. Create some real routes, don't just muck about. Creating real routes, ones that you'll use, forces you to work through it, rather than giving up in high dudgeon after 10 minutes. You have routes to do, so that's a good start.
3. There is a reasonable amount to learn, so you'll probably forget things or sit there wondering 'How the hell did I do that?'. Don't worry, it will come back to you.
4. Always remember, you really cannot break it. No matter what.
5. It really is much more similar to Mapsouce than many people think. It took me a while to realise that, added to having to learn how to use a Mac at the same time. I am far from computer literate, dreading to touch anything but the most simple of tasks. I got there in the end.
6. Sometimes just a basic ask in Google, turns up answers. Something like: 'Joining routes in BaseCamp' will often turn up some very good idiot's guides. It's a safe bet that if you have a question, someone else will have had the same question somewhere in the world and will have had it answered.... Often very well.
Have fun.