The easiest way to do that would be to place it inside a a TABLE with a black background like this:
Here is the code that I used:
<table bgcolor=black cellspacing=5 cellpadding=5 width=400 height=400 border=0>
<tr>
<td align=center>
<img src="http://www.mikesfreegifs.com/main4/alien/shuttle2as.gif" width=300 height=240>
</td>
</tr>
</table>
This is a basic 1 cell table, but you can add as many cells as you'd like. Here's a good tutorial.
< img src=”http://tinypic.com/r/2wovk7d/5" >
Thanks - I’d missed seeing your reply initially, then saw it while totally tied up with other matters, FINALLY am getting back to it!