tetris help

could someone give me some help on making a tetris game? like where to start...like umm how to put graphics on the screen

How to do graphics depends very specifically on the compiler and libraries you're using, so you'll have to post that before anyone can help you.

As for programming the non-graphical elements of the game, it depends on your level of experience. If you're new to programming, you might want to write a few simpler programs first. Other than that, your question's a little too broad to give much of a response to.