Pedant Point:

"Word 7" is the new, possibly still in beta or just out, replacement for Word 2010, which replaced Word 2007, which replaced all previus (useful) versions. A "Word 10," not the same as Word 2010, also appears to be coming(?) to replace Word 7.

Elsewise:

The suggestion of getting an older version instead of Word 2007 or later, is not without some risk.

Since everything prior to Word 2007 is "out of support" there is no effort to confirm that changes made by patches for the OS are compatible with them. My Word 2003 began to erratically "fail to perform" correctly about five years ago, apparently because WinXP patches blocked functions that it used. Office 2007 was the only thing I could get then for a supported replacement.

Office 2000, including Word 2000, appears to have been the "last supported" usable version, so it likely would have the best prospects for remaining functional for a while. It remained supported for a while longer than others since Windows 2000, for which it was "designed" (a euphemism for Microsoft recent development?), was based directly on NT that a lot of businesses used for it's "advanced" network capabilities, and many business users were reluctant to drop NT/Win2000 for newer OS versions.

Word 2002 (on LiK's WinXP) seemed to work reasonably well for quite a while after my Word 2003 quit; but I can't say how functional it would be now since she blew her machine and it looked easier to move her to Vista/Word 2007 at the time. It might be worth a try if you can find a really cheap copy.

John