Just for the record better to add following
title="Way Hay A Logo Change"
Or just title, not sure of web standard (Need to check that) but as far as I know just having "Alt" will not show in firefox
So it will be
<div class="line1">
<div class="logo">
<a href="{$catalogs.customer}/home.php"><img src="{$ImagesDir}/abeezcustom/yourlogo.gif" alt="Way Hay A Logo Change" title="Way Hay A Logo Change"/></a>
</div>
Don't know what skin your using, but I would assume it's almost same, agin firefox bug will give you what you need (Most of the time)..