Adding an image to index.php

[Rememberthemoments]

I am making the transition from OSCommerce to Zen Cart.

Can someone give me some help on what code to use to insert an image on to index.php

TIA

Also, I am trying to remove the HEading Title altogether (that originally says Congratulations you have successfully installed Zen Cart)

I have tried commenting it out on index.php but when I do that HEADING_TITLE appears.