Mozilla mirrors (all versions of all Mozilla software). Just pick one:
http://ftp.mozilla.org/pub/mozilla.org/
And here you'll find the releases for Firefox 1.07 - all free:
http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/1.0.7/
graybeard58 doesn't read very well. he jumped me the other day for double posting something and it was two different write ups.
old age is getting to him.(grin)