I suggest you start with learning the D chord. It seems to be easy for most people to learn. It can be strumed or picked and the shape can be moved up the neck. D is played with your pointer finger in the 2nd fret, move your pointer up to the 5th then 7th frets.

Just using that one chord or shape in those 3 places moving from one spot to another will open your ears to just the beginning of what a guitar can bring out of you. Mix struming and picking as you move. You will start to impress yourself with what you can do in a short amount of time, then see the bigger picture.

This is only one chord or shape, what can I do with the rest of them.

Once you get to that point check out Lisa's lessions again. You will have enough back ground to understand what she is saying and doing. Other instructors also have great lessions, but for what it sounds like you are trying to learn, Lisa's lessions would be a Gold Mine to you.