如何在记事本++中反转正则表达式区域？

问：

我有以下清单：

  <th class="News">14</th>
  <td class="News"><a href="pclinuxos">PCLinuxOS</a></td>
  <td class="News" style="text-align: right" title="Yesterday: 341">341<img src="/web/20050131094820im_/http://distrowatch.com/images/other/alevel.png" alt="=" title="Yesterday: 341"></td>
</tr>
<tr>
  <th class="News">15</th>
  <td class="News"><a href="redhat">Red Hat</a></td>
  <td class="News" style="text-align: right" title="Yesterday: 290">289<img src="/web/20050131094820im_/http://distrowatch.com/images/other/adown.png" alt=">" title="Yesterday: 290"></td>
</tr>
<tr>
  <th class="News">16</th>
  <td class="News"><a href="slax">SLAX</a></td>
  <td class="News" style="text-align: right" title="Yesterday: 274">275<img src="/web/20050131094820im_/http://distrowatch.com/images/other/aup.png" alt="<" title="Yesterday: 274"></td>
</tr>
<tr>
  <th class="News">17</th>
  <td class="News"><a href="vine">Vine</a></td>
  <td class="News" style="text-align: right" title="Yesterday: 269">261<img src="/web/20050131094820im_/http://distrowatch.com/images/other/adown.png" alt=">" title="Yesterday: 269"></td>
</tr>
<tr>

我可以通过以下正则表达式来选择我的目标行：

(.*)\R.+\.png" alt\b

现在我想使用正则表达式反转我的目标行。
我使用正则表达式来反转它，但我失败了，得到了以下结果！^(?!.*(.*)\R.+\.png" alt\b).+\R

为什么我的正则表达式只与其中一行相反？问题出在哪里？