http://www.sevenforums.com/tutorials/91339-ssd-hdd-optimize-windows-reinstallation.html
http://www.sevenforums.com/tutorials/219487-clean-reinstall-factory-oem-windows-7-a.html
You may find the tutorials listed above helpful.
If the SSD shows up in bios, then I don't know why you can't see it in diskpart. I have never had that happen. The only thing else I can think of to try is to download something like the Partition Wizard Mini Tool, or a Linux Distro like Puppy Linux, both of which can be run from a live cd, or flash drive. You can then boot up into one of them and see if your SSD is recognized. Other than that, maybe some one else here will have an idea.