The final solution for me is edit the template:
vbgoogle_set_yourlocation
and delete or comment this:
<tr>
<td class="alt2" align="left" valign="top">$vbphrase[vbgooglemapme_imgurl]</td>
<td class="alt1" align="left"><input name="pimage" size="20" value="$pimage" style="padding-left:5px; font-weight:normal; width:200px;"></td>
after in the db you can insert a default value for che pimage field, like:
http://www.youdomain.com/your_vb_dir...me/noimage.png