css is the easiest way so I will put in the inline css.
<img src="image1.gif" alt="some image" style="display:inline;" />
<img scr="image2.gif" alt="some other image" style="display:inline;" />
you could use a table
<table>
<tr>
<td><img src="image1.gif" alt="some image" /></td>
<td><img...