They are stored in the registry here:
HKEY_CURRENT_USER\Software\Microsoft\FrontPage\Explorer\FrontPage Explorer\Recent Publish
List
with the valuenames web1, web2 and so on.
"HOWEVER" they must remain in order so that they will display.
If you delete web3, then web4 and above will not display because FrontPage thinks that
web2 is the last one.
fwiw, I'm working on a version of FPCleaner that will allow a user to "properly" edit
these types of listings
for FP, EW and SharePoint designer.
--
Steve Easton
Microsoft MVP FrontPage
FP Cleaner
http://www.95isalive.com/fixes/fpclean.htm
Hit Me FP
http://www.95isalive.com/fixes/HitMeFP.htm