OpenVPN Installation on Mac OSX

First, download Tunnelblick

Tunnelblick 3.2.3 (which requires OS X 10.4 or higher) can be downloaded directly here:
http://code.google.com/p/tunnelblick/downloads/detail?name=Tunnelblick_3.2.3.dmg

(For OS X 10.3, aka Panther, you can download Tunnelblick 2.01 at http://code.google.com/p/tunnelblick/)

Once downloaded, open the .dmg file and drag the Tunnelblick (or Tunnelblick.app) icon to your Applications folder.

In your web browser, log in to https://vpn0.neteasyinc.com/ and download the client.ovpn file next your name. Save it to:

~/Library/Application Support/Tunnelblick/Configurations

NOTE: As of Mac OS X Lion, the Library folder is hidden from users by default.  You will have to open the command line tool to un-hide the Library directory.

Run Tunnelblick by double-clicking it in the Applications folder.

The first time it runs, it will ask you for the username and password for your Mac. This is different from your VPN login.
Once you have run Tunnelblick for the first time and connected successfully to the VPN, it should not ask you for your Mac login again. (You will still need to enter your VPN password every time you connect.)

Once Tunnelblick is connected, the previously closed tunnel icon (typically on the top right of your screen) should be open.

Next, in your web browser, go to http://citrix.com/clients and click on "Online Plug-in for Mac".
On that page, select the "Citrix Online plug-in for Mac -Web" (the second download link at the bottom). Download and install the plug-in.
(Once the plug-in is installed, you should not have to repeat this step.)

Now, in your web browser, you can visit the address assigned to you and log in.