Starting with version 5.1, Safari does not install properly.
Probably something fixable, e.g., a missing Runtime Support Component, but I have not experimented.
Instead, the instructions below are for the latest version of Safari (5.0.5) that installed automatically using "Other Application".
Also note that Top Sites and Cover Flow require a compatible DirectX 9.0 video card with 64MB of video RAM.
The instructions below do not attempt to install DirectX and hence Top sites and Cover Flow will not work.
Click: Install Safari 5.0.5 via CrossTie
Click: Install
Click: Next
Select: "I accept ..."
Click: Next
Unselect: "Install Bonjour ..."
Unselect: "Automatically update ..."
Click: Install
Unselect: "Open Safari ..."
Click: Finish
Click: Close