clip art of MS office 97 (operating system is Wint NT4)

We’re using Win NT 4 workstation, MS office 97. When people received an e-mail has clip art insert or attached file(wiht clip art)on it, they can’t open the clip art, but when I un-installed puplisher 98 on that system(workstation), they can open the clip art.
Any comment or be able show me how to fix it please.
Thanks very much.
Regards.
Thom Dinh