Windows 7 .iso not showing up?

Hi there, I have a few questions.
First off, I tried downloading the Win7 RC 64-bit via that download manager that you have to use. After the download, I do no see the .iso file of Win7 RC on my desktop(which I set as where I want to file to download). The only icons I see that are related to the RC are the "Start Download Manager" and the .dlm file for the RC. Does anyone know what may be going wrong?

And another question: since you can't upgrade from a 32-bit Vista to a 64-bit Win7, I will have to do a clean install. Does anyone know how I can make an ISO of my current OS? I don't have the OS DVD since my laptop came with Vista already installed.

Any help is greatly appreciated, thank you.

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