That would be an XML mod, but a pretty simple one. Something like just adding this bolded line to the entity.simpleproductlist.xml.config XmlPackage (or whatever package you're using):
Code:
<xsl:template name="SubCatCell">
<xsl:param name="scName"></xsl:param>
<xsl:param name="pSEAltText" select="aspdnsf:GetMLValue(SEAltText)"></xsl:param>
<xsl:param name="AltText">
<xsl:choose>
<xsl:when test="$pSEAltText=''"><xsl:value-of select="$scName" /></xsl:when>
<xsl:otherwise><xsl:value-of select="$pSEAltText" /></xsl:otherwise>
</xsl:choose>
</xsl:param>
<xsl:param name="URL"><xsl:value-of select="aspdnsf:EntityLink(EntityID, SEName, $EntityName, 0, '')" /></xsl:param>
<td align="center">
<a href="{$URL}">
<xsl:value-of select="aspdnsf:LookupEntityImage(EntityID, $EntityName, 'icon', 0, $AltText)" disable-output-escaping="yes" />
</a>
<br/>
<a href="{$URL}">
<xsl:value-of select="$scName" disable-output-escaping="yes"/>
</a>
<br/>
<xsl:value-of select="aspdnsf:GetMLValue(Description)" disable-output-escaping="yes" />
</td>
</xsl:template>
You can add whatever other breaks/formatting you want too of course