$sql = "INSERT INTO mytable (this,and,that)";
$link_id = mysql_connect($DBhost,$DBuser,$DBpass);
@mysql_select_db("$DBName");
$results = mysql_query($sql);
$id = mysql_insert_id($link_id);
mysql_close($link_id);
NOTE: $id = mysql_insert_id($link_id);
this will assign the autoincremented ID# to $id.
-dr