Rather than add an attachment to the post you use the tools at the top to add images that are stored on another site, I use photobucket. You want the icon that looks like a picture next to the envelope icon. Resize your photos to 800x600 or 1024x768 and upload them to photobucket. Then you can click on the picture you want to add and then click on one of the options to copy the link URL. Paste that into the tool box you have selected to use. Once you accept the selection in the tool box it will place the correct code into the body of your post that will in turn display the image in your post. This allows you as you asked to place multiple pictures in the body of the post and have text between them.