Install WebObjects Using Apple's Installer
Install WebObjects using the Apple WebObjects 5.4.3 Installer dmg if you want "standard" install paths. Make sure you install "WebObjectsRuntime.pkg" which is in the "Packages" directory of the .dmg.
Download the WebObjects installer then the Snow Leopard apache adaptor
Then open terminal and perform the "extra" stuff you need to do to get things complete. you will need to do all this as 'root', hence the sudo -s at the start.
mv mod_WebObjects.so mod_WebObjects.so.obsolete
curl -C - -O http://wocommunity.org/documents/tools/mod_WebObjects/Apache2.2/macosx/10.6/mod_WebObjects.so
cp httpd.conf httpd.conf.backup
echo "Include /System/Library/WebObjects/Adaptors/Apache2.2/apache.conf" >> httpd.conf
After configuring Apache, continue to use the terminal as you did in the previous step and configure launchd to to let the wotaskd (and the WOMonitor if you want) start automatically.
curl -C - -O http://www.greenislandconsulting.com/webobjects/com.apple.webobjects.wotaskd.plist
curl -C - -O http://www.greenislandconsulting.com/webobjects/com.apple.webobjects.womonitor.plist
NOTE: These two plists point to the Apple provided JavaMonitor and wotaskd that are in /System/Library/WebObjects/JavaApplications/.
If you are using the Wonder versions and placed them in /Library/WebObjects/JavaApplications/ then you will need to edit these files.
launchctl load com.apple.webobjects.wotaskd.plist
If you are going to run WOMonitor on this machine, then do the following:
launchctl load com.apple.webobjects.womonitor.plist
If you have problems or further questions try the tips here: Debugging wotaskd and JavaMonitor, if that still doesn't give you the clues you need, ask on the wo-deploy mailing list