|I forgot to mention that you also need to enable sharing of any files and printers on the Windows 7 computer that you wish to share.|
Open Computer and right click on the icon at the left of each drive listing that you wish to share. Choose Share with> advanced sharing> Sharing> Advanced sharing. check -share this folder> permissions> follow the prompts.
If you don't want to share an entire drive then expand the drive and right click on the folder/s you want to share and then follow the same outlined process.