Hard drives crashed on CentOS-64 server - installed new drive, need to recover data

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http://www.linuxquestions.org – Thanks for making this forum available. New to Linux. Windows server admin looking to do real computing now. Its an honor to be here. OK, CentOS-64 system with two hard drives crashed. Hosting provider said both drives died. I dont get it but that is what they are saying. When I do ls /dev, I see the drives and the partitions. I cannot get to them however because I cant figure out how to mount them. They installed a third drive into the system and also a fresh Cent OS to allow me to boot into this thing. I am in now. When I do fdisk -l I can see the other two drives I need access to. The is (HowTos)