Get Frontpage 98 at these sites.

Make sure you download data.1 through data.5 and fp98beta.exe

http://frontpage.www.conxion.com/frontpage/download/dl_203.htm

ftp://ftp.uni-rostock.de/Vendor/Microsoft/Msdownload/FP98/

ftp://ftp.usherb.ca/pub/PC/WIN95/FP98/

ftp://ftp.univ-poitiers.fr/pc/Win32/Internet/FrontPage98/

ftp://ftp.cs.depaul.edu/cspub/fp98beta/