Custom Desktop Widget

Ok let's get into background what I do. I am a meteorologist and have a website that thousands visit. I am doing it all for free right now. I need to step it up for my visitors and have them download a widget for their computer desktop. This widget information will be controlled by me and my staff to update weather watches and warnings from us and links to visit. 1. The widget must have a small window displaying a .jpg file from our site/server it can be pulled off upon updating the .jpg file via the website. 2. The widget must have a section where text will be visible and a link if possible for the people. The text would be weather watches and warnings we issue. The widget must update automatically as we upload to the server. 3. We must have full control of the information our viewers see on the widget. If you can do this simple project for our viewers then please let me know! I am putting a base price on it and will await bids. What my base price is in this website can be negotiated. Let me know how complex this is. Just need a very simple pull of my .jpg file to a window, and enabling text with links to be added in the widget when we issue watches/warnings/updates. Thanks and please respond. Kevin