It's not going to be an easy process, since Snow Leopard does not include the earlier versions of Java. There's a workaround being developed for Java 1.5 here:
http://wiki.oneswarm.org/index.php/OSX_10.6_SnowLeopard
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Another user posted the following information for earlier versions of Java:
"I was able to get Java 1.4.2 working with Safari in Snow Leopard tonight. Here's how to do it.
1. Install Java 1.4.2 as outlined in this link:
http://wiki.oneswarm.org/index.php/OSX_10.6_SnowLeopard
Alternatively, extract Java 1.4.2 from the Java For Mac OS X 10.5 Update 4 installation package, and install it in a similar manner:
http://support.apple.com/downloads/Javafor_Mac_OS_X_10_5_Update4
2. Make sure that Java 1.4.2 is the first 32-bit application in the list. Under Java Preferences, my list reads:
Java SE 6 64-bit
J2SE 1.4.2 32-bit
Java SE 6 32-bit
3. Open Safari in 32-bit mode via the Get Info window for Safari. This is where I was getting screwed up. It finally occurred to me that Java 1.4.2 is a 32-bit application, but if Safari was opening in 64-bit mode, it wouldn't use the 32-bit Java apps.
Once I opened Safari in 32-bit mode, Safari was able to use Java 1.4.2. "
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As with any such hacks, you may cause problems with your system, so you're on your own. But with luck one of those methods will work for you.
Ultimately, of course, Kronos needs to update their software to be compatible with more current versions of Java.
Regards.
