Image Guidelines for Web Publishing
FILE FORMATS and SIZE: You can upload .gif and .jpg images for use on your web site. Try to minimize the size of your image files by uploading them at approximately the size at which you want to use them on your web page. Small image files download quickly and make it easier and faster for others to view your web pages.
DO NOT upload .bmp files as they may not display properly on all computers.
TIP: Images will take up the majority of your allotted server space. To see how much space your site uses on the server, and how much is available, click on the Site Options button at the top of your screen.