Hazel 2.2.2 installed but not showing in prefs

I installed the 2.2.2 update the other day. After that I noticed it wasn't running. I went to check my sys prefs today and saw that it's not listed there. So I tried reinstalling it again and I get a message asking me if I want to replace it as it already exists. I say yes, but it still doesn't show up in my system prefs.

Any ideas?

I'm running 10.5.5 PPC.

Thanks

It seems that System Preferences has gotten flakey in recent OS releases. I would try manually installing the pane. Grab the latest version and copy the prefpane file to your Library/PreferencePanes folder. Restart System Preferences and see if that helps anything.