无法将文本区域值传递给我的表单

I'm currently re-designing a page on my site that allows registered users to send messages to the administrators. All the code I'm using is already fully functional on the other page but after moving everything across, it has stopped working, which has baffled me.

<textarea name="content" id="msgs" class="convo" ></textarea>

The text area is as simple as it gets, the form is wrapped around TR tags. I know the form is working because I also submit to the form the date/time and the email address' of the sender and receiver. The form executes 'compose.php', writes to the database successfully and re-directs back to the customer's profile. The problem is that the "new" message is blank. Everything was sent to the form apart from the contents of the text area.

If I use a plain text area then everything works, so the problem has to be the 'WYSIWYG Content Editor' that I apply to the text area, even though it works fine on the other page?

bkLib.onDomLoaded
(
  function()
  { 
    new nicEditor({buttonList : ['bold','italic','underline','left','center','right','ol','ul','fontFamily','fontSize','fore    color','link','unlink']}).panelInstance('msgs');
  }
);

Does anyone have any idea where I can start? I've been troubleshooting this for a good few hours and it's starting to get the best of me! If you need any other snippets of code, let me know.

EDIT

Maybe this will help...

<textarea name="content" id="msgs" class="convo" >TEST MESSAGE</textarea>

When the page loads, "TEST MESSAGE" is written to the text area. If I submit it, the value is passed to the form and then to the database etc... But if I remove it and type my own words, nothing is sent across?

I have managed to fix the problem!

The old code was:

<form name="send" id="sndmsg" method="post" action="compose.php">
<tr>
  <td width="90%" class="tab">&nbsp;Compose New Message</td>
</tr>
<tr>
  <td>
    <textarea name="content" id="msgs" class="convo" ></textarea>
  </td>
</tr>
<tr>
  <td>
    <input name="user_s" type="hidden" id="user_s" value="<?PHP echo $user;?>" />
    <input name="user_r" type="hidden" id="user_r" value="<?PHP echo $email;?>" />
    <input name="fname" type="hidden" value="<?PHP echo $fullname;?>" />
    <input type="image" src="/send.png" />
  </td>
</tr>
</form>

Which was clearly, not working. The new code does work, which is the following:

<tr>
  <td width="90%" class="tab">&nbsp;Compose New Message</td>
    <form name="send" id="sndmsg" method="post" action="compose.php">
    <textarea name="content" id="msgs" class="convo" ></textarea>
    <input name="user_s" type="hidden" id="user_s" value="<?PHP echo $user;?>" />
    <input name="user_r" type="hidden" id="user_r" value="<?PHP echo $email;?>" />
    <input name="fname" type="hidden" value="<?PHP echo $fullname;?>" />
    <input type="image" src="/send.png" />
    </form>
  </td>
</tr>