Windows torrc references @LOCALSTATEDIR@ in torrc
The torrc that ships with windows has a config line for @LOCALSTATEDIR@ in it for the DatDirectory config option.
A user should be able to uncomment this line and have it work by default. LOCALSTATEDIR is probably C:\Documents and Settings\Username\Application Data\Tor
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information