I did it by tweaking kento-ads-rotator/index.php.
1) In your wordpress admin, go to plugins>editor then on the pulldown on the right where it says “Select plugin to edit”, choose Kento Ads Rotator then click the select button. Click kento-ads-rotator/index.php, then go to the code window.
2) Its a good idea to make a copy in a text file first in case you make a mistake. At least you’ll be able to put it back the way it was.
3) Now that you have a copy made, return to the admin. Scroll almost halfway down to the line that says
<optgroup label=”Medium Rectangle” >
<option value=’300,250′ <?php if ($kads_bn_size==”300,250″) echo “selected”; ?> >300×250</option>
</optgroup>
Change 300 and 250 to the size you want (first number is width, second is height, in pixels) then click the “update file” button. If you already have banners in place you will need to resize them using the kads admin.
