Are you saying that you were able to successfully install Win7 with new installation media?

Now you are getting a Blue Screen of Death (BSOD) Posting Instructions - Windows 7 Forums. See if there is a minidump file in the Windows folder to post back for analysis in our BSOD forums per the instructions in the blue link.

Did you enable Automatically deliver drivers via Windows Update (Step 3)
then Check for Updates and install all Important and Optional Windows Updates? There will be drivers provided and updated in both Important and Optional as well a patches to make them work correctly.

If this fails work through the Troubleshooting Steps for Windows 7 starting with the hardware tests.