Need serious help

Im trying to install the rc version of windows 7. First off i have an acer aspire 5610-4612. Now I cant even boot from the cd to begin installation and yes I've set usb cdrom, the only cd i see and i only have 1 cd rom drive, to the first boot priority. Next off here is a screenshot of my drives. I cant even access any removable devices including my cd rom drive :S. So I cant install from OS either. Im running build 7000 btw.

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