IE7: What's With This Dysfunction?

I've been an avid user of Firefox for quite a while now, and the above stupidity of IE7 is one reason why I use only use IE for quick browsing, or for IE-specific things that Firefox doesn't do so well (such as Outlook Web Access). Let me decode that above screen shot for you to illustrate my point. I went to interfacelift.com looking for some new wide-screen wallpaper, using IE7. I found an image I wanted, and after selecting the resolution I wanted, the wallpaper loaded in my browser. OK, fine so far. But when I right-clicked on the image and selected SAVE PICTURE AS, the only option it gives me is a BMP (bitmap), which makes the image into a huge 11.7 MB file. I should be able to drag and drop from the browser to the desktop, but that function won't work either. IE6 had the same problem, and they didn't seem to address it with IE7. I wonder if IE8 will be any better?