First of all, welcome to the Multiverse Forum!
The Multiverse Platform is relatively easy to learn, as long as you at least have a basic understanding of Java (for server programming - aka Jython) and Iron Python.
I myself was a complete newbie to MMO development, and I have a very limited knowledge of game programming - I used to work on projects as a 3D modeller and voice actor, but like yourself, I decided to start something off myself.
You'd think that as the Admin, I would be very experienced, published a few games etc, but I'm really not! I just took it upon myself to get Multiverse back up and running, so am more of a Project Manager.
So, anyone can start off with Multiverse, and there is plenty of useful information on the Wiki
that you can use to start learning the basics.
I hope you enjoy your stay here, and good luck with your project(s)!