olympusamerica.com has OLYMPUS Master 1.42EX for MacOS OS X 10.2 or later, updated: May.23 2006.
There is a good chance that Mac OS X printing and iPhoto will support your equipment with the built-in drivers, so you wouldn't have to install any new drivers. But you could download and install them anyway so that you have the latest versions from the original manufacturers.
Our personal machine is having seizures today and might be on the way out. Since Windows is changing OS's now anyhow, this would be a good time to change to Mac instead.