If things showed up blank, then there was a mistake in the code. Take a look at my test blog: http://flippintestblog.wordpress.com/ . I've corrected the mistakes in the code and these work with no red border:
<a href="http://www.skiminvasion.com">
<img class="aligncenter" style="border:none;" src="http://i972.photobucket.com/albums/ae206/navarresurf/Skim/wunderkindcollegesideC.jpg" alt="" width="186" height="296" /></a>
<a href="http://www.handsacrossthesand.com">
<img class="aligncenter" style="border:none;" src="http://i972.photobucket.com/albums/ae206/navarresurf/misc%20beach/event-blocksmall.gif" alt="" width="155" height="166" />
</a>