Save into Database while shows a customized preview

Hello,

I am having a company here with foreign retailing. I have to ship packages abroad. Due to workload I cannot remember what parcels I have sent.

I had a script which I used to print Labels to print. But now, what I want is, while the script prints a styled preview of what is entered in previous page, it also get saved in Database (MYSQL)

Before, I do not save it anywhere, I just enter the data in inv.php and push shubmit and it shows a preview, which I have customised on the other page. But now I want, that on the preview.php page it also get entered in a MySql Databse. is it possible?

Here are two scripts I am using
INV.php


 
<style type="text/css">
<!--
.cap {
 text-transform: uppercase;
}
-->
</style>
<form method="POST" action="preview.php">
<div align="center"></div>
<table width="100%">
  <tr>
    <td width="9%" class="K">TO:</td>
    <td width="26%" align="justify"><textarea name="to" cols="50" rows="5" class="cap" id="to" ></textarea></td>
    <td align="center" width="6%" class="K"> FROM:</td>
    <td width="59%" class="K" align="justify"><textarea name="from" cols="50" rows="5" id="from">My address</textarea></td>
  </tr>
  <tr>
    <td class="K"><p>&nbsp;</p></td>
    <td>&nbsp;</td>
    <td align="center" class="K">&nbsp;</td>
    <td class="K">&nbsp;</td>
  </tr>
  <tr>
    <td class="K">Category:</td>
    <td><input name="cat" type="text" class="K" id="cat" size="50" /></td>
    <td align="center" class="K">Weight:</td>
    <td class="K"><input name="wgt" type="text" class="K" id="wgt" />
      Grams</td>
  </tr>
  <tr>
    <td height="61" class="K">Value of Contents:</td>
    <td><input name="usd" type="text" class="K" id="usd" /> 
      <span class="K">USD</span></td>
    <td align="center" class="K">Contents</td>
    <td class="K"><input name="item" type="text" class="K" id="item" /></td>
  </tr>
  <tr>
    <td height="61" class="K">&nbsp;</td>
    <td>&nbsp; </td>
    <td align="center" class="K">Item #</td>
    <td class="K"><input name="contents" type="text" class="K" id="contents" value="* *" /></td>
  </tr>
</table>
<p>
  <input type="submit" value="Submit">
  <input type="reset" value="Reset">
</p

PREVIEW.PHP


<style type="text/css">
<!--
.K {
 font-size: 14px;
 font-weight: normal;
 font-family: Tahoma, Geneva, sans-serif;
}
.bar {
 font:"Free 3 of 9 Extended";
 font-size:14px;
}
.K2 {
 font-size: 14px;
 font-family: tahoma, Geneva, sans-serif;
}
.ff {
 font-family: "Courier New", Courier, monospace;
}
-->
</style>
<table align="left">
  <tr>
    <td>
      <table width="97%" align="center" background="ss.jpg">
        <tr>
          <td>&nbsp;</td>
          <td class="ff">CONTENTS: <span class="K2"><?php echo " :" .$_POST["item"]. " "; ?></span></td>
        </tr>
      </table>
      <table>
        <tr>
          <td>&nbsp;</td>
        </tr>
      </table>
      <table width="800" align="center">
        <tr>
        <td class="K"><strong><U>SEND TO :</U></strong></td>
        <td class="K2">&nbsp;</td>
        <td class="K" align="right"><strong>FROM :</strong></td>
        <td class="K2">&nbsp;</td>
      </tr>
      <tr>
        <td width="12%" height="131" class="K">&nbsp;</td>
        <td align="justify" width="34%" class="K2"><table width="250">
            <tr>
              <td class="K2" style="text-transform:uppercase"><strong> <?php
 
echo nl2br(" " .$_POST["to"]. " ");
?></strong></td>
              </tr>
          </table>         </td>
        <td width="14%" class="K" align="center"><p>::</p>
          <p>::</p>
          <p>::</p>
          <p>::</p></td>
        <td align="justify" width="40%" class="K2"> My Address        </td>
      </tr>
      <tr>
        <td height="16" class="K">------------------</td>
        <td class="K2">--------------------------------------------------</td>
        <td class="K">---------------------</td>
        <td class="K">--------------------------------------------------------</td>
      </tr>
    </table>
      <table width="72%" align="center">
        <tr>
          <td align="center"><span style="font:Verdana, Geneva, sans-serif; font-size: 10px;"> :: Package Information :: </span></td>
        </tr>
      </table>
      <table  width="72%" align="center" >
        <tr align="left">
          <td width="11%" style="font:Verdana, Geneva, sans-serif; font-size: 10px;" height="20">*Content:</td>
          <td width="28%"  class="K2"><?php echo " " .$_POST["cat"]. " "; ?></td>
          <td width="8%" style="font:Verdana, Geneva, sans-serif; font-size: 10px;">*Weight:</td>
          <td width="31%" style="font:Verdana, Geneva, sans-serif; font-size: 10px;" class="K2"><?php echo " ".$_POST["wgt"]." "; ?> grams</td>
          <td width="9%" style="font:Verdana, Geneva, sans-serif; font-size: 10px;" class="K"><p>*Price:</td>
          <td width="13%" style="font:Verdana, Geneva, sans-serif; font-size: 10px;" class="K2"><?php echo " ".$_POST["usd"]." "; ?> USD</td>
        </tr>
      </table>
    <hr color="#CCCCCC" />
    <table width="100%">
      <tr>
        <td width="57%" height="67"><p>Item ID:</p>
          <font face="IDAutomationHC39M" color="#000000" size="+2"> <?php echo " " .$_POST["contents"]. " "; ?> </font> </td>
        <td width="43%"><p>Tracking Code:</p>
          <p>&nbsp;</p></td>
      </tr>
    </table>    <?php
echo "<input type='hidden' name='to' value='".$_POST["to"]."' />";
echo "<input type='hidden' name='from' value='".$_POST["from"]."' />";
echo "<input type='hidden' name='content' value='".$_POST["cat"]."' />";
echo "<input type='hidden' name='wgt' value='".$_POST["wgt"]."' />";
echo "<input type='hidden' name='usd' value='".$_POST["usd"]."' />";
echo "<input type='hidden' name='usd' value='".$_POST["contents"]."' />";
?></td>
  </tr>
</table>