This is the result of bad HTML:

<TR>
   <TD>EDIT DELETE</TD>
   <TD><B>Job Number</B> = 111098</TD>
   <TD><B>Description</B> = Direct mail to 
       non-customers - design, copy, FA</TD>
   <TD>DETAILS</TD>
</TR><BR>
[download]

That trailing <br> is outside of all of your <table> elements (<tr> and <td>). As a result, its behavior is undefined and your browser is rendering it before rendering the completed table. The result is equivalent to a bunch of <br> tags before your <table> tag. In any event, since <tr>...</tr> by definition defines a row, the <br> is unnecessary and out of place.

So no, this is not Perl's fault.