install bugzilla in the windows server

first: see this document.
http://www.bugzilla.org/docs/win32install.html

second, if you want to send mail:
Change the next file:

From: XXXXX

"C:\bugzilla-2.20\template\en\default\account\cancel-token.txt.tmpl"

"C:\bugzilla-2.20\template\en\default\account\email\change-new.txt.tmpl"

"C:\bugzilla-2.20\template\en\default\account\email\change-old.txt.tmpl"

"C:\bugzilla-2.20\template\en\default\account\password\forgotten-password.txt.tmpl"