The actual installation of VCT is not hard , as with anything it is the prep work that is important. Make sure the floor is clean clean clean before you spread the glue.
Find the center of the room and pop a chalk line down the middle, spray that line with clear spray paint to make sure the line doesn't disappear when you spread the glue, this will be your guide line for laying the tile.
Use a 1/8th notch trowel, spread the glue, let it sit until it "flashes" and is tacky to the touch. You should be able to lightly swipe you finger tips across it without sticking but not be able to touch it directly without sticking to it.
Lay the tile in a pyramid fashion, following the line and laying the tile to either side of the line stepping down and up, this will keep the tiles square to each other and keep rows of tile from "leading" against other.
When it comes to making cuts, use a small torch to heat the backside of the tile where the cut is to be made. Heat it until it starts to be noticeably soft and even bend due to its own weight, this make cutting the tile with a utility knife super easy, use the backside of another tile as a cutting board.
Some folks use a roller, if the room is warm enough and the tile is pliable, that inst really necessary. To each his own.