Form post virker ikke

Hej Eksperter, jeg har et problem med denne kode.. submit virker fint nok, men den sender ingen informationer videre- bemærk at dette er kun et udsnit af min kode; som jeg mener at fejlen skal findes i.. Jeg har selv set mig blind


<div id="joinform" style="display: <?=($posted ? "block" : "none")?>;">
<br>
<table width="560" border="0" cellpadding="0" cellspacing="0">
    <tr>
        <td width="370" valign="top">
<table width="370" border="0" cellpadding="0" cellspacing="0">
    <form name="join" action="?page=register" method="POST" onsubmit="this.opretbt.disabled=true;this.opretbt.value='Tilmeld..'">
    <tr>
        <td width="100" class="text_default">Selskab:</td>
        <td><input type="text" value="<?=stripslashes($_POST["company"])?>" name="company" size="28" class="input_default" onkeyup="checkvalue(document.join.company.value, 8, 'company'); return false;"> <img id="check_company" height="17" width="17" src="gfx/others/transparent.gif"></td>
    </tr>
    <tr>
        <td height="3" colspan="2"></td>
    </tr>
</table>
<div id="showstatus" style="display: none;">
<table width="370" border="0" cellpadding="0" cellspacing="0">
    <tr>
        <td width="100"></td>
        <td><div id="status" class="text_error" style="font-size: 10px;"></div></td>
    </tr>
    <tr>
        <td height="3" colspan="2"></td>
    </tr>
</table>
</div>
<table width="370" border="0" cellpadding="0" cellspacing="0">
    <tr>
        <td width="100"></td>
        <td valign="middle"><button class="text_default" style="width: 163px;" onclick="checkname(); return false;">Tjek tilgængelighed</button></td>
    </tr>
    <tr>
        <td height="3" colspan="2"></td>
    </tr>
    <tr>
        <td width="100" class="text_default">Direktør:</td>
        <td><input type="text" value="<?=stripslashes($_POST["manager"])?>" name="manager" size="28" class="input_default" onkeyup="checkvalue(document.join.manager.value, 2, 'manager'); return false;"> <img id="check_manager" height="17" width="17" src="gfx/others/transparent.gif"></td>
    </tr>
    <tr>
        <td height="3" colspan="2"></td>
    </tr>
    <tr>
        <td width="100" class="text_default">Kodeord:</td>
        <td><input type="password" value="<?=($passerror ? "" : stripslashes($_POST["password"]))?>" name="password" size="28" class="input_default" onkeyup="checkvalue(document.join.password.value, 8, 'password'); return false;"> <img id="check_password" height="17" width="17" src="gfx/others/transparent.gif"></td>
    </tr>
    <tr>
        <td height="3" colspan="2"></td>
    </tr>
    <tr>
        <td width="100" class="text_default">Kodeord (igen):</td>
        <td><input type="password" value="<?=(($passerror || $passerror2) ? "" : stripslashes($_POST["password"]))?>" name="password2" size="28" class="input_default" onkeyup="checkvalue(document.join.password2.value, 8, 'password2'); return false;"> <img id="check_password2" height="17" width="17" src="gfx/others/transparent.gif"></td>
    </tr>
    <tr>
        <td height="3" colspan="2"></td>
    </tr>
    <tr>
        <td width="100" class="text_default">Email:</td>
        <td><input type="text" value="<?=stripslashes($_POST["email"])?>" name="email" size="28" class="input_default" onkeyup="checkvalue(document.join.email.value, 0, 'email'); return false;"> <img id="check_email" height="17" width="17" src="gfx/others/transparent.gif"></td>
    </tr>
    <tr>
        <td height="3" colspan="2"></td>
    </tr>
    <tr>
        <td width="100"></td>
        <td><input type="submit" name="opretbt" class="login_btn" value="Tilmeld"></td>
    </tr>
    </form>
</table>
</div>