Try to make some changes in business_logic.php at about line number 1525:
FROM
$results_table .= "<table class=\"results\">";
TO
$results_table .= "<table class=\"results\" width=\"100%\">";
FIXED WIDTH TO SOME COLUMNS, FROM
$results_table .= "<th class=\"results\"> </th>"; // skip the first column for edit, delete and details
TO
$results_table .= "<th class=\"results\" width=\"90\"> </th>"; // skip the first column for edit, delete and details