silly session stuff....

hi list.. i am new to php... so please be kind... i am having a little problem in managing sessions .. below is the code i for: //"a.php" <? session_start(); session_register("SESSION"); ?> <form action ="b.php" method="POST"> <input type="text" name="user"> <input type="password" name="passwd"> <input type="submit" name="Submit"> </form> <? $SESSION["name"]="guest"; $SESSION["passwd"]="guest"; ?> ---------------------------------------- //b.php <? session_start(); echo "User ".$SESSION["name"]."<br>"; ?> ---------------------------------------- it gives me: User: nothing...... what i want is to access the session variable SESSION in a.php as well as the fields $name and $passwd. what i get from this is that both POST and session id funda cant work together.... is there any way by which i can have this kind of stuff ... i dont wanna use cookies since a lot of server disable cookies..... please help me .... i want this really bad .... one more thing i can get the constant SID but not $PHPSESSID. where am i going wrong .. please feel free to advice ..... thanx in advance .