here's 2 methods of filling empty cells:
method 1.
PHP Code:
<table border=0 cellspacing=5 cellpadding=0>
<tr>
<td> </td>
<td>The last cell was empty</td>
</tr>
</table>
the above method will work, but there is a limitation on how low the height parameter can be. the next method will solve that.
for the next one you must create a transparent gif 1 pixel by 1 pixel. lets call it "spacer.gif"
method 2.
PHP Code:
<table border=0 cellspacing=5 cellpadding=0>
<tr>
<td><img src=spacer.gif width=1 height=1></td>
<td>The last cell was empty</td>
</tr>
</table>
hope this helps.