Bootcamp enable read/write between Mac HFS+ and Windows NTFS partitions
Allow Mac to read/write to Windows NTFS partition using NTFS-3G.
1. Download the latest from http://macntfs-3g.blogspot.com/
2. Install, restart. Done.

Allow Windows to read/write to Mac HFS+ partition using MacDrive.
1. Acquire http://www.mediafour.com/products/macdrive/
2. Install, restart. Done.

or for a free read-only alternative using Java..
Allow Windows to read Mac HFS+ partition using HFSExplorer.
1. Download from http://hem.bredband.net/catacombae/hfsx.html
2. Install, restart. Done.