easiest way is to css it
example:
<span class="yodude">
<img src="http://yoursite.com/images/image1.jpg" />
<img src="http://yoursite.com/images/image2.jpg" />
</span>
then the css could be:
.yodude img {
margin:4px 10px;
border:none;
}
.yodude {
padding:6px;
}
that would put 10px of space between the 2 images ( adjust as needed)
i also css'd the containter span with 6px all around.
you could switch out the span for a div, if you wanted to go block based, versus inline..
all kinds of possibilities
if you explain more details, i can refine it