Im trying it now, but i have two basic questions

I download the latest pywallet version, placed it in the same folder i had my previous one after deleting the first.
In the previous version (1.1 i think), when doing from command line a pywallet.py --version it would return the version, but in this case, when i simply do from the windows command line a pywallet.py --version, it returns this:
C:\Users\unknown user\Desktop\pywallet>pywallet.py --version
File "C:\Users\unknown user\Desktop\pywallet\pywallet.py", line 4
^
SyntaxError: invalid syntax
And second question:
in the command option s "c:\path\to\your\wallet.dat", if i am supposed to search within a deleted hard drive for wallets/keys, how can i point to a wallet? Should i point to the location where my wallet was before i erased the files?
thank you!