Make cats and sub cats line up under each other

[EnergyFreak +]

Hey guys,

Is there a way to make the main cats and their subcats line up one under another? Instead of the three table cells per row and line up one beside each other, then the others show up on another table row. I am asking this because I currently have three rows chosen in my admin panel and some main cats have a lot more sub cats than others, so there are huge white spaces in between some rows. How would I eliminate these spaces? Is it even possible? I am using the new listings plugin by the way and it works great!

While I am on the cats and subcats on homepage subject, I might as well ask how can we display an ad among those cats? As seen on many classified sites. I just want to display a 200x200 image ad underneath one of the cats, maybe like after the seventh one or so, so it is approximately in the middle.
Thanks.

[seymourjames +]

I think if you search the forum you will find answers to this question which has come up several times. Often the answer is in having the developer version although recent releases of the software addressed some of these type of needs.