I use a third party screenshot program. Search for Snapshooter or GrabClipSave or others. Disable the screenshot command in controller settings in the sim. These programs save them as .jpg files in a folder of your choice. As mentioned Photobucket and Imageshack are 2 free hosting sites. You upload the image from your computer to example Photobucket and copy/paste their provided URL here or with "insert image" button in this forum. And viola!