I can't find any good pics of the inside of your system. You're going to have to replace the power supply on such an old system. I recommend sell your system intact after doing a fresh install of windows, and get a full size case, such as the antec 300 so you can run any atx or micro atx board you desire. Build your own with windows 7. If you know how to change a board, then you can finish any new build. Here's a video from youtube: http://www.youtube.com/watch?v=gKgK8Z8Z7-o&feature=related.