It will take longer than I have to explain the whole job and the tools that go with it so, I am going to recomend you read some books like Flooring 1-2-3 from Home Depot. You could go to a library and do the same.
I think it would show you what the tools look like and also how to lay out the floor before you start.
Unless your floor boards are clean and even your lino will not set right and it will "form" to every crack and groove.
Doing the job yourself will save you enough money to buy a better grade of flooring but, if you make a mistake, it could be expensive. Do your home work first!
Good luck, Jason
Ps.. I would not take a chance on miss-reading someone's post if you have never done this before!