hey , it works , i didnot know it was so simple ,,, thanx a lot

on the thumbnail you could add the style :)

margin-right:15px;

You have:

#contentLeft img, #contentLeft a img {
	 padding: 0;
	 margin: 0;
	 float: left;
}

You need to have:

#contentLeft img, #contentLeft a img {
	 padding: 0;
	 margin: 0 15px 0 0;
	 float: left;
}

The problem that you will have is every time you add an image inside your post (that isnt a featured image) it will still float it to the left. It would be best to put your featured image in a div and give it an ID so you can call it in your CSS.

i would be very thankful to u for this