Full size image on the post and thumbnail on category pages.

I found these two links which helped.

https://markjaquith.wordpress.com/2009/12/23/new-in-wordpress-2-9-post-thumbnail-images/

and

https://www.kremalicious.com/2009/12/wordpress-post-thumbnails/

It has to do with the_post_thumbnail() function which does not have good documentation on the www.remarpro.com site.

These links were a great help – thank you!

I wrap my thumbnail in one div class, and wrap my excerpt in another div class in the loop both of those are in the entry div class

then in css I make the two div classs appropriate widths, able to fit inside the entry class

then I float the thumbnail div left, and the excerpt class right, inside the entry div

I solved it by adding a section to my stylesheet for the post-image.

.wp-post-image {
float: left;
margin: 2px 10px 10px 0px;
}

I tried the div classes but I don’t think I was handling those right. Thanks for your help though.