Hi, ignoramus,
The advise from tonycarreon will help you to see the files from Windows documents when on Mac. But It will not allow you to open Mac files with Windows picture editor or any other program.
For this purpose you need to set up special Parallels Desktop "Shared Applications".
The procedure is quite simple:
First, you should configure the Shared Applications settings in Virtual Machine Configuration -
select Share Windows application with Mac OS X to allow using Windows applications for opening the files in Mac OS X.
The detailed instructions are given here:
http://download.parallels.com/desktop/v4/docs/en/Parallels_Desktop_Users_Guide/22690.htm
Having done as described, please, follow Parallels Knowledgebase article:
http://kb.parallels.com/en/5690
and enjoy the result.
NOTE: the virtual machine should be running to launch the application which you prefer to open this or that file. Otherwise it will be started automatically if you double-click on file to be opened with Windows program
Last edited: Dec 14, 2008