You really should learn HTML before you try doing anything with PHP. Your HTML question is really basic stuff, I would recommend going through some HTML tutorials before doing anything else.
As far as your specific question, you can use tables or layers to position things. Layers are a more advanced topic, so try to just lay it out with tables. Something like this:
<table>
<tr><td colspan="2"><img src="main_image.jpg"></td></tr>
<tr><td>Links go here</td><td>News goes here</td></tr>
</table>