[balinor]

Ok, in your version, the code for the thumbnail is this:

{include file="product_thumbnail.tpl" productid=$imageid image_x=$config.Appearance.thumbnail_width product=$products[product].product tmbn_url=$products[product].pimage_url type=$products[product].is_pimage}

If you want to change the size, just replace this:

image_x=$config.Appearance.thumbnail_width

with

image_x=50

Replace 50 with the size you want for the width.