Just right click on the picture and select " Resize Pictures". Select the small setting (usually 640x800 ?). Then when you try and post a picture, after the post, go down to "attach file", select browse, and locate the picture on your hard drive. Be sure to select the small version---voila!! You have posted pictures!!!
Uh, when I right click the picture, there is no Resize picture option. And when I tried to post as is, I get the message that the picture is too big. Plus, it seems like you can only attach one picture per post.
Download the free version of their image optimizer. It is a 1 MB size program, so even with dial up, it only takes 8-10 minutes to download. You can resize, crop and compress pics in seconds. Very user friendly too.