Latest builds of different GO related files:
Latest and full version of the go client (version 0.94b)
Card Data (through PC, in a zip file)
Copy these files to the install folder for go, and you have the latest version of go. You will have the installer for version .87; install it then download the most recent GO client (.93).
If you find any bugs, don't hesitate to mention them in the forum. That is the only way to improve GO, and make it a well working client.