Something like this: 
<xsl:variable name="cols" select="5"/>
<xsl:variable name="rows" select="ceiling(last() / $cols)"/>
<xsl:for-each select="yourTag[position() &lt;= $rows">
  <tr>
    <!-- self::position() below refers to the value of position() HERE
+ -->
    <xsl:for-each select="yourTag[position() mod $rows = self::positio
+n()]">
      <td><xsl:value-of select="..."/></td>
    </xsl:for-each>
  </tr>
</xsl:for-each>

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In reply to Re: OT - Dynamic data into columns in XSLT by Anonymous Monk
in thread OT - Dynamic data into columns in XSLT by rashley

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