I'm working with someone who is compiling documents on a CD for review by
other colleagues. We are using Word 2003 documents, but are unsure what the
system and Word versions the recipients have. (they are located in different
states, etc)

Are Word 2003 documents viewable in older versions/systems? What about
compatability PC to Mac? (we are using a PC) And, can they be opened using
other word processing software?

Thanks!