I followed your suggestion. Nice feature. I didn't know that was there. However, it didn't work, at least not for uploading/inserting an image using the WP 3.01 insert button just above the tool bar in the "Add New" post interface. I was using the image URL method of inserting the image. I used the entire block of code from article with the CSS inserts option. What am I doing wrong? Is there another way to limit/resize post image inserts automatically?