Regarding that bug of IE saving .jpg files as .bmp's instead of jpg's. There are two versions of the problem, both with work-arounds.
Aparently, if the IE browser cache is completely full, sometimes IE will start saving jpg's as bmp's. The cure for this is to either enlarge your browser cache or go into tools->internet Options and hit "delete files" to clear the browser cache.
The other problem is stranger, sometimes when you try save a pic it will refuse to save as anything but a bmp, but if you hit the browser "reload page" button and try again, then it will work. For some reason, this happens to me for EVERY attached picture in this forum, but it doesn't happen anywhere else. go figure...