Send a photo, with preview - URGENT

[eluser]Boris Strahija[/eluser]
Yes I know about the "urgent" part, I usually don't do that. It's just I didn't get much sleep and I'm on a deadline

The whole app runs on CI, so it has something to do with it I'm using the CI form validation, upload and image manipulation libraries.
My question is actually what is the best way to pull off something like I'm trying. It should work in IE6 also. I know it's outdated, but the client wants it.

@flemming
How could I upload a photo with Ajax? I know about plugins, but I don't think it is possible with with plain ajax()