I don't think it says anywhere how big the file is allowed be, but years ago it used to be 25 kb. However, it looks like Karen is accepting a bigger size now. If you e-mail the pictures (any size) to her, I'm sure she will post them for you, or tell you exactly how to do it.

Some of us can post pictures, and some can't. I don't know why.

Perhaps cats4ever will tell you how she does it.