Can someone tell and maybe please show me how to set up a boost gauge and turbo timer... how to put everything together...

 

The Turbo timer is not too difficult, it's just a lot of rooting around under the dash. Here's Greddy's instructions on how to install their Full-Auto Timer, whichever one you have should be similar:

http://www.greddy.com/img/PHP/products/pdf/685.pdf

If you check out the manufacturer of your timer they may have instructions for the specific model on their site as well.