The border you see is the default border around fieldsets.... you can remove it on forms/fd_compact_default.css line 315 by adding "border:0;" to the fieldset style.
To add just a border on the results table try adding a new css line:
.WADAResultsTable td {
}
The difference in margin on the two pages is because the first one has css on the page itself:
body, td, th {
color: #000000;
margin-left: 25px;
margin-right: 25px;
padding-bottom: 6px;
padding-top: 6px;
}
That is adding the left margin that you don't see in the other one on the top.
The second page has css on news_results.php that adds the padding to just the second form:
form.DetailsPage {
margin-left: 20px;
margin-right: 20px;
width: auto;
}
If you remove the custom css from the second page and add it from the first page it will be consistent.