As Mizal said, you can't do any of that in a newbie-friendly way.
What I'd suggest with the name thing is to cut it if you can. Nobody on this site cares about character names and it's a real pain to code in. However, if it's really important to you and your story, you can just give the character a selection of names to choose from, and keep track of them using a name variable where each name option corresponds to a value. If you really want a fully-customizable name, there is an article somewhere on the articles page (link provided by mazdark) that explains how to do it. The basic premise is you code a seperate variable for each letter in the name, and then have an enormous scripting textblock to spell it out one letter at a time each place the name appears. It's really not worth it, and there's no better way to do it, as variables on this engine can only be set to numerical values, not text ones.
Weapons and armor is much easier, but still not newbie friendly. In this article I explain an armor-equiping system, and in this article I explain one battle system that can be used to implement it. (Shameless self plug: If you want to see them both in action, check out this dungeon crawling game.)
However, for your first game I recommend doing something much simpler, just to figure out how the editor works, or spend a while messing around with it before starting a game. That way, when you tackle a bigger project, you'll be able to get the editor to do what you want much more quickly.