если xsl-шаблон прайса был стандартным, замените его на этот
<?xml version="1.0" encoding="windows-1251"?>
<!DOCTYPE xsl:stylesheet>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output xmlns="http://www.w3.org/TR/xhtml1/strict" doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
encoding="Windows-1251" indent="yes" method="html" omit-xml-declaration="no" version="1.0" media-type="text/xml" />
<!-- Шаблон "МагазинПрайс" -->
<xsl:template match="/shop">
<!-- CSS для таблицы с прайсом -->
<style TYPE="text/css">
<xsl:comment>
<xsl:text disable-output-escaping="yes">
<![CDATA[
.price_table_border, .price_table_border td
{
border-collapse: collapse;
empty-cells: show;
border-width:1px;
border-color: #CCCCCC;
border-style: dashed;
padding-left: 5px;
}
]]>
</xsl:text>
</xsl:comment>
</style>
<h1>Прайс-лист</h1>
<!-- Отображаем таблицу -->
<table class="price_table_border">
<tr bgcolor="#EEEEEE">
<td align="center" height="25" valign="middle"><b>Код</b></td>
<td align="center" height="25" valign="middle"><b>Наименование товара</b></td>
<td align="center" height="25" valign="middle"><b>Цена</b></td>
</tr>
<xsl:apply-templates select="/shop/item">
<xsl:with-param name="group_id" select="0"/>
</xsl:apply-templates>
<xsl:apply-templates select="group"/>
</table>
</xsl:template>
<!-- Группы товаров -->
<xsl:template match="group">
<xsl:variable name="attr_group_id"><xsl:value-of select="@id"/></xsl:variable>
<xsl:if test="count(/shop/item[@group=$attr_group_id]) > 0">
<tr>
<td bgcolor="#EEEEEE" colspan="3">
<xsl:value-of select="name"/>
</td>
</tr>
<xsl:apply-templates select="/shop/item">
<xsl:with-param name="group_id" select="@id"/>
</xsl:apply-templates>
</xsl:if>
<xsl:apply-templates select="group"/>
</xsl:template>
<!-- Товары -->
<xsl:template match="/shop/item">
<xsl:param name="group_id" />
<xsl:if test="$group_id = @group">
<tr>
<td><xsl:value-of select="marking_of_goods"/></td>
<td><a href="{/shop/path}{fullpath}{path}/"><xsl:value-of select="name"/></a></td>
<td><xsl:value-of select="price"/> <xsl:value-of select="currency"/></td>
<xsl:apply-templates select="modifications/item"/>
</tr>
</xsl:if>
</xsl:template>
<!-- Модификации -->
<xsl:template match="modifications/item">
<tr>
<td><xsl:value-of select="marking_of_goods"/></td>
<td><a href="{/shop/path}{fullpath}{path}/"><xsl:value-of select="name"/></a></td>
<td><xsl:value-of select="price"/> <xsl:value-of select="currency"/></td>
</tr>
</xsl:template>
</xsl:stylesheet>