How can I test my website in an old version of Safari on OS X?

Question

Apple doesn’t seem to offer downloads of older versions of Safari, and I’m not even sure they would install on Mac OS X, as Safari seems to be part of the OS like Internet Explo

Answer 1

Michel Fortin’s Multi-Safari looks like a good bet. 3.0.4 worked great for me on Snow Leopard.

(Bonus question: did Michel Fortin work on Markdown?)