Guys, this classifieds plugin is an embarrassment. Really.
I could spend the next 3 hours writing a novel about how terrible this plugin is after spending hours and hours trying to get it to work and look good on the site. You had an out-of-box bug that displayed "Classifieds" as the post title in sidebar widgets (which you already patched for me but I haven't seen an official patch). I can't find a single example of somebody actually using this plugin successfully.
You'll see what happens to your category grid when you have more than 3 subcategories in any category. By the way, we have 12 main categories and a ton of subcategories.
When I entered all of the main categories and subcategories and viewed the page, the entire grid disappeared. So I removed the subcategories and only 8 of the 12 main categories show up. I began adding in subcategories to "Community" one at a time, and after 4 subcategories, the grid layout falls apart with 4 columns at the top, 3 columns (col 2, 3, and 4) in the 2nd row, and the last grid box showing up by itself in column 1 of row 2.
After adding the rest of the Community subcategories and a couple of For Sale subcategories, the grid looks like it does now.
There are other major layout issues as well with this plugin. We've had to spend hours and hours trying to figure out and write our own CSS to make the displays look like something that wasn't a bunch of overlapping HTML table cells. Terrible, really.
How did the screenshots on the plugin page get done? Because out of the box, this plugin does not display anything remotely like what I see in the screenshots.
Go over the Classifieds pages and see for yourself. I gave you support access through the WPMU DEV dashboard.