riporto tutto il codice del file CategoryChildlist...... in eretto dove ho modificato da 4 a 6 per riga!
il punto 1' la trovo qui la riga da cancellare o su un altro file...prova a guardarci cosi sistemo anche quello
GRAZIE MILLE SEI MOLTO MOLTO GENTILE 
<?php if( !defined( '_VALID_MOS' ) && !defined( '_JEXEC' ) ) die( 'Direct Access to '.basename(__FILE__).' is not allowed.' );
mm_showMyFileName(__FILE__);
$iCol = 1;
if( !isset( $categories_per_row )) {
$categories_per_row = 6;}
$cellwidth = intval( 100 / $categories_per_row );
if( empty( $categories )) {
return; // Do nothing, if there are no child categories!
}
?>
<table width="100%" cellspacing="0" cellpadding="0">
<?php
foreach( $categories as $category ) {
if ($iCol == 1) { // this is an indicator wether a row needs to be opened or not
echo "<tr>\n";
}
?>
<td align="center" width="<?php echo $cellwidth ?>%" >
<a title="<?php echo $category["category_name"] ?>" href="<?php $sess->purl(URL."index.php?option=com_virtuemart&page=shop.browse&category_id=".$category["category_id"]) ?>">
<?php
if ( $category["category_thumb_image"] ) {
echo ps_product::image_tag( $category["category_thumb_image"], "alt=\"".$category["category_name"]."\"", 0, "category");
echo "
\n";
}
echo $category["category_name"];
echo $category['number_of_products'];
?>
[/url]
</td>
<?php
// Do we need to close the current row now?
if ($iCol == $categories_per_row) { // If the number of products per row has been reached
echo "</tr>\n";
$iCol = 1;
}
else {
$iCol++;
}
}
// Do we need a final closing row tag?
if ($iCol != 1) {
echo "</tr>\n";
}
?>
</table>
