Product List missing info

Ok, I KNOW this is the Zen site, I DO have a Zen store, but this store was made with osCommerce (only cause I didn't know about Zen then!). I post to their forum and ..well...its like a ghost town most days/nights. This site was always so helpful and everyone so nice, so, I'm hoping someone might be able to point me in the general direction here...yes, I'm desperate! :blush:

Here is my site :

http://www.NothingButRomance.com

There are 3 "ways" of finding a book :

1. by Genre in Categories
2. By Series title in Series box
3. By Author's Last name in Author (Manufacturer) box

The test book that I'm using for my example can be viewed in the following "ways" :

1. Inspirational (category)
2. B (series)
3. K (author, and yes I know its under the wrong letter, but I put it there)
   The image as you can see is a pic of my baby werewolf (Wolfie) and his brother Sam

Here is my issue :
Please click on the Series letter B to see the Product List with the single book showing.
It shows the Author's name and the Series title
If you click on the Category or Author it shows in the product listing page the word BY
but nothing following it.
How can I get at least the author's name to show there like it does when you find the book thru the Series?
A lot of books won't have a Series but ALL books need to show their Author from the list view.
The Author shows fine on the individual Product's page.

Help!

What files and EXACTLY where are they located that need to be edited to fix this?

Thanks so much!