Hello again--all my last posted comments refer to OS 10.2.4. If you want to keep trying, I don't mind. I'm not an expert, but am willing to help.

I'm not sure about the need to delete the ".com.zerog.registry.xml" file either. It's invisible (it has a period at the beginning). Let's just forget about it for the time being, and make sure you can start fresh. Pardon me if I'm being too simple--but I'm still not sure if you deleted all the old components, since uninstall won't delete the LimeWire Folder in the Applications folder: that has to be done too.
Perhaps if you indicated how much experience you have with OSX, I might be able to adjust my comments accordingly. I'd like to know if you already know how to do a "Safe Boot", repair permissions, and "Create new Admin User"

In the meantime, here are the steps I take to delete old LW stuff after running the "uninstall"

The OSX "Find" command allows these options
Search in: (choose "Everywhere")

Search for items whose:
file name (choose "contains"); enter "limew"
Add criteria (choose "visibility")
visibility (choose "all")

Click on the search button and see what shows up that probably should be deleted.

Then I'd look for two or more folders called "Shared" and "Incomplete"
What's inside?