If you have your data backed up to external media on the Windows Account you used to have the network drive mappings on, you could run a System Restore on that account and put back all your accounts to the way they were before you lost your drive mappings. This is risky without a full backup as I said, but, even if you got a look at those drive mappings, you could take screenshots, write then down using pen and paper, or use your Cell phone camera to snap screenshots. If you have to rebuild your computer from scratch, you would then have those mappings. In the IT world, you NEVER map drives on an account without having it properly documented for just the kind of problem you are running into. Word to the wise for the future.
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