Lambda Distribution or Generalised Lambda Distribution

Hello All,

I am looking to use a Lambda distribution to model, Normal, Uniform and distributions which are a combination of the two. But I can't find any information about it. (I had hoped to also include Skewed data. )
From Wikipedia, I think it is possible to do what I want, but all other information goes way over my head. (I have A level maths, but it is a little rusty).
Can anyone help me understand this, or point me towards some where I can find out more?
Any help appreciated.