Change Product Image Size on Homepage

Hello. I spent a couple of hours looking for a way to change the size of product images on the home page https://www.tsnjewelry.com
I found that I can change the size by changing these parameters:

Small Image Width 175
Small Image Height 175
Image - Product Listing Width 175
Image - Product Listing Height 175
Image - Product New Listing Width 175
Image - Product New Listing Height 175
Image - New Products Width 175
Image - New Products Height 175
Image - Featured Products Width 175
Image - Featured Products Height 175
Image - Product All Listing Width 175
Image - Product All Listing Height 175

But unfortunately it also changes size of additional product images. Now thumbnails also became 175px X 175px. http://www.tsnjewelry.com/index.php?main_page=product_info&products_id=9
My question is - Is it any way to change size of of product images only on the home page? May be it can be done by editing CSS?
Thank you.

You could test if you are on the home page with:
$this_is_home_page

and if so, set different values for the images than the default values of:
SMALL_IMAGE_WIDTH
SMALL_IMAGE_HEIGHT