This is a zip of a pre-modified version of MultiSafari 2.0.4
Use this if you don't already have MultiSafari 2.0.4 installed
/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain system -domain user
defaults write com.apple.Safari.MultiSafari204 IncludeDebugMenu 1
There were a bunch of standalone Safari versions available from Michel Fortin called MultiSafari. They only worked on Tiger.
I took what he had done and modified it very slightly to enable it to run on Mac OS X 10.5 Leopard.
I wrote a quick Terminal Shell Script to convert a pre-installed copy of MultiSafari to work on Leopard.
The UpdateSafari2forLeopard.sh script does this stuff…