Cross Partition File Access + Edit

New MacBook Pro 13" running bootcamp with Windows 7. This is my second MacBook Pro running bootcamp but this is first time I have had current Microsoft Office programs on both sides. I noticed I can open files from one partition to the other but not save the other. A fast solution so far is to leave a thumb drive in and just save to that, but I was thinking if there was a way to it without the thumb drive and I decided I would ask if anyone has partitioned a portion of their hd to act as save tool for cross os files? If this works I'd like to know while the hard drive is young and can easily be partitioned for such a thing. I am open to all suggestions except spending more money lol

Are you saying you cannot save to the windows partition when using Office for Mac?

Yes. Says its read only

A Windows NTFS volume is read only on the Mac, unless.....

You buy Paragon NTFS
Paragon NTFS for Mac OS X software

Or try the free MacFuse from Google code
macfuse - The Easiest and Fastest Way to Create File Systems for Mac OS X - Google Project Hosting

imho - if you're going to run Windows on your machine, for $20, the Paragon software is about as hassle free as it gets. They also have one that allows Windows to write to HFS+ partitions.