Yikes that intro is a mess. Is that tabbed right. How much do you know about playing tab? It kind of looks like it has two guitar parts combined into one. Try and find different copies of that tab on the net or see if you can find it to play in
guitarpro or powertab. You may find one a little simpler than that.
Looks like powerchords on the bottom 3 strings and the melody on the G string. Thats a pretty tough way to get back into guitar. Why don't you start with some of Kirks' lessons and work your way up to more complex pieces. Just a thought.