You can use "sctforums.com" I believe it is.
basically, in a nutshell
Install Livelink3
plug in your XCAL to your laptop via USB
XP will find two devices. point to your "sct\livelink" folder for both of the devices.
reboot
run livelink and click the icon on the far left of the icon bar at top (get strategy, etc)
pick your variables you want to log/view
click ok
right click on the gauges on the top, and assign a variable to each gauge.
start a datalog session.
enjoy.
I highly suggest going to the forums, and viewing the FLASH written how-to, and walk throughs for installation, device installation, and livelink operation BEFORE you try it.