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You're mistaken. IE has had SVG support since IE5, long before Safari and Firefox introduced Canvas. And the nice kids at Google have built a little library that lets you emulate most Canvas functionality via SVG: http://sourceforge.net/projects/iecanvas
(At first I thought this was a joke, but it's up to +4.) I think you're mistaken. I tried IE6 and IE7 just now, and they don't do SVG (though it nicely offers to save the file). I think you're thinking of something called "VML". IE does have that, but it's not the same as SVG, not as full-featured as SVG, and nobody else supports it. Maybe that would solve some of my problems, but I'd never even heard of it before --…
"IE does V" is pretty much all I was trying to convey. Good luck!