Hi!
i don't understand what kind of table u are talking about: <table> or a database table
i think your problem is with the second
<select name="product1">
<optionvalue=1>monitor</option>
<select name="product2">
<optionvalue=1>motherboard</option>
<select name="product3">
<optionvalue=1>memory</option>
.
.
.
<?php
//first connect and select your database
//then:
if($product1==1)
{
$query="insert into mytable (product1,"; $query.="product2, product3)";
$query.="values ('monitor', ";
}else
$query.="''";
if($product2==1)
{
$query.="'motherboard', ";
}else
$query.="''";
if($product3==1)
{
$query.="'memory' ";
}else
$query.="''";
$query.=") where whatever";
$result=mysql_query($result);
//close your connecton
?>
and if you want to introduce in an HTML table remember HTML run in client side, so, you need to call to the same page but now if the value(s) exists then introduce the product(s) into the table
regards!!
José García Sabbagh