Nope, there's no need to run a SQL script or modify any code. On the XML package, you're using, for instance product.SimpleProduct.xml.config, locate the template Product, then add the following params:
Code:
<xsl:param name="ManufacturerID" select="/root/EntityHelpers/Manufacturer/Entity/EntityID"></xsl:param>
<xsl:param name="ManufacturerAltText" select="/root/EntityHelpers/Manufacturer/Entity/SEAltText"></xsl:param>
Then you put this line anywhere you want the manufacturer image to appear:
Code:
<xsl:value-of select="aspdnsf:LookupImage('manufacturer',$ManufacturerID,'','', 'icon', $ManufacturerAltText)" disable-output-escaping="yes" />
and that's it...