Safari Mouse Shortcuts

Is there a way to assign the buttons on my mouse to keyboard shortcuts in Safari? The mouse came with drivers that allow me to set buttons to actions in programs, but the scroll wheel left and scroll wheel right buttons aren't included. How can I make these go forward and back in Safari?

umm...

go to system preferences, then keyboard & mouse, then click on the mouse tab. Snoop around there, you'll find something.

Options there are "Tracking Speed", "Double-Click Speed" and Primary mouse button. None of those help with this.

Get USBOverdriveX (shareware: versiontracker.com)

It will let you assign keyboard commands to your additional mouse buttons.