JSFiddle - React, Tailwind, and code Playground

HTML

<table cellspacing="1" cellpadding="3" border="0" bgcolor="#cccccc">
<tr class="colors_backgroundlight">
<td>Item#</td>
<td>Item Name</td>
<td>Our Price</td>
<td>Qty</td>
<td><b>Add</b></td>
</tr>
<tr bgcolor="#ffffff" class="Multi-Child_Background">
<td class="smalltext colors_text">H211-41</td>
<td class="productnamecolorSMALL colors_productname">J. Herbin Small Glass Dip Pen - Amber Frosted</td>
<td class="smalltext colors_text"><b>$15.75</b></td>
<td><input type="textbox" value="1" name="QTY.H211-41" maxlength="8" size="5"></td>
<td><input type="checkbox" value="H211-41" name="ProductCode"></td> 
</tr>
<tr bgcolor="#ffffff" class="Multi-Child_Background">
<td class="smalltext colors_text">H211-09</td>
<td class="productnamecolorSMALL colors_productname">J. Herbin Small Glass Dip Pen - Black Frosted</td>
<td class="smalltext colors_text"><b>$15.75</b></td>
<td><input type="textbox" value="1" name="QTY.H211-09" maxlength="8" size="5"></td>
<td><input type="checkbox" value="H211-09" name="ProductCode"></td> 
</tr>
<tr bgcolor="#ffffff" class="Multi-Child_Background">
<td class="smalltext colors_text">H210-10</td>
<td class="productnamecolorSMALL colors_productname">J. Herbin Small Glass Dip Pen - Blue Striped</td>
<td class="smalltext colors_text"><b>$15.75</b></td>
<td colspan="2"><b><font color="#cc0000">(Backordered)</font></b></td>
</tr>
<tr bgcolor="#ffffff" class="Multi-Child_Background">
<td class="smalltext colors_text">H210-30</td>
<td class="productnamecolorSMALL colors_productname">J. Herbin Small Glass Dip Pen - Green Striped</td>
<td class="smalltext colors_text"><b>$15.75</b></td>
<td><input type="textbox" value="1" name="QTY.H210-30" maxlength="8" size="5"></td>
<td><input type="checkbox" value="H210-30" name="ProductCode"></td> 
</tr>
<tr bgcolor="#ffffff" class="Multi-Child_Background">
<td class="smalltext colors_text">H210-20</td>
<td class="productnamecolorSMALL colors_productname">J. Herbin Small Glass Dip Pen - Red Striped</td>
<td...

JavaScript

$("td:contains('(Backordered)')").each(function() {
    var item = $(this).closest('tr').find('td:first')
    var code = $(item).text();
    $(item).html('<a href="/Email_Me_When_Back_In_Stock.asp?ProductCode='+code+'">'+code+'</a>');
});