How to set the size of the images on the first page listing same size as the other blog items?

Hi,

I have 500+ blog items.
The page listing is 5
The images on the first page (first 5 blog items) have a small image with text on the right
The blog items on the next pages and on (blog item 5+) have full width images in the item?

How can I have the blog items on the first page of the listing the same image size as the rest?

Thanks,

Roel