See tech help section, much of the questions have answers there. You overcame the biggest hurdle by having the client.
Did you make a launch script or each account? http://www.takproject.net/forums/index.php?threads/getting-takproject-up-running-for-osx.153/
Are you sure that you have the right client? Titanium, or any newer client like UF, SoD will not work here, you need to make sure it is the old EQMac one.