I got to lookin at album_upload a little closer an saw that the pic_id is already retrieved for email notification.
This should give you a link to view the pic, but only if approval is off and it is not a multi-pic upload
OPEN
album_upload.php
FIND
$message = $lang['Album_upload_successful'];
AFTER ADD
if ($pic_count == 1)
{
$pic_id = $new_pic_id['pic_id'];
$message .= "<br /><br />" . sprintf($lang['Click_view_pic'], "<a href="" . append_sid(album_append_uid("album_showpage.$phpEx?pic_id=$pic_id")) . "">", "</a>");
}
OPEN
language/lang_english/lang_album_main.php
FIND
$lang['Click_return_album_index'] = 'Click %shere%s to return to the Album Index';
AFTER ADD
$lang['Click_view_pic'] = 'Click %shere%s to view your pic';