PHP:WML Input Box does not refresh VALUE="$variable"

[Serialmouse]

Guys,

I used PHP to generate WML page, Here's the prob:

Inbox.php: lists inbox messages
Read.php: displays the actual messages
compose.php : for composing message to send

INBOX.PHP lists messages, each clickable, when one is clicked, it calls READ.PHP which displays the actual message. READ.PHP then has a link REPLY, which calls COMPOSE.PHP, COMPOSE.PHP has input boxes with values set to some variable from READ.PHP passed by REPLY link, first time displays properly. Then COMPOSE.PHP has a link INBOX which calls INBOX.PHP, click this time on different message, then click on REPLY, the input boxes in COMPOSE.PHP still contains the same value as the first.

<input type="text" name="to" value="<?=$message_to?>">

I can't seem to fix this even using NO Pre CAche headers, META expiration. What the heck is causing such a prob. I checked the parameters passed, it was always updated when it got to the next PHP file but the INPUT BOXES still displays the old value.

HELP is very much appreciated here.

Thanks