http://fc07.deviantart.net/fs71/f/2012/150/2/6/how_to_slow_down_lag_in_minecraft_by_jusey1-d51mtg0.jpg - I found a way to take care of my lag-problems.
Now, I do have a few questions.
1: Is it possible to get farm animals to follow you so you can put them into a pen? If so, how?
2: What is an Ender Portal and where is the Nether Area, and how to get to those areas?
That is about it... I do have more questions but they are about the Skyrimcraft mod I have so I wont ask those unless someone here has de' mod and may know the answers.
1) To get animals to follow you, lure them by holding a piece of wheat. To get wheat, either farm it (craft a hoe, till some land near to water, and plant seeds found by punching long grass) or find it in dungeon or mine chests.
2) An Ender Portal leads to The End, which is a late-stage thing. You'll need to build a Nether Portal first anyway. To build one, look here: http://www.youtube.com/watch?v=IuqC46QKAkQ&feature=fvwrel
It does require a diamond pick to get that obsidian first. Oh, and I recommend bringing a couple cobble stacks on your first trip to the Nether, to establish a beachhead.