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if you want to use something, you have to learn how to use it first. Remember when you first started with dreamweaver? It wasn't easy at first, but now you can do stuff easily... same with xoops...
If you had read the FAQ and intros, you would know the basis of the XOOPS system and how the modules work. Start there, try things out, mess something up and fix it. That's how you learned dreamweaver, and probably anything else that you have learned throughout your life.
Certainly, saying "This sucks, I can't figure out how to use it" after only two hours isn't saying much about xoops. It's saying how little you actually care.
Like anything else worthwile, XOOPS is going to require some TIME and EFFORT. But it's worth it.