1) You can write to CD assuming that you have a CD writer or if you can borrow a USB CD Writer. Failing that you can slave the old HD to your new computer and copy the info. click here
2) Just reformat the HD to clear the info click here and then reload the OS. Sometimes a master CD will let you return the computer back to factory spec (fresh install of OS)
before you start any of these post here for step by step instructions.