Or to be more specific ($query is your CGI object):

print STDOUT <<EOT;
<p>Some more html...</p>
<table>
<tr>
EOT

print '<td>' . $query->submit(-name=>'Button1', -value=>'Button1') . '
+</td>';
print '<td>' . $query->submit(-name=>'Button1', -value=>'Button1') . '
+</td>';
print '<td>' . $query->submit(-name=>'Button1', -value=>'Button1') . '
+</td>';

print STDOUT <<EOT;
</tr>
<tr>
    <td>I AM ON THE SECOND ROW</td>
[download]

etc, etc.