class="rightmargin" or "leftmargin" or "middle" depending on what you're after

Do you mean you want the text to wrap around the image?

ImageImage   Lorem ipsum dolor sit amet, consectetuer adipiscing
ImageImage   elit, sed diam nonummy nibh euismod tincidunt ut laoreet 
ImageImage   dolore magna aliquam erat volutpat. Ut wisi enim ad minim 
ImageImage   veniam, quis nostrud exerci tation ullamcorper suscipit 
lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum
iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel 
llum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio
dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te
feugait nulla facilisi.

You can do this by adding align="left" or right or center to the img tag when you are writing your article in the back office.

<img src="url/to/your/image" align="left" alt="alt text" />

:D

It's been so long since I've done straight HTML I forget all the "easy" stuff! Thanks again!