Change Image Url to Text Url

[oldworldcharms]

Can someone please tell me how to change this image url to an text url.

 

<tr>

<td class="main"><a href="' . tep_href_link(FILENAME_TELL_A_FRIEND, 'products_id=' .$new_products['products_id']) . '">' . tep_image_button('t_small.gif') . ' ' . NEW_TELL_A_FRIEND . '</a></td>

</tr>

 

 

Thanks