Yeah me...
You need to log back into IBM's site for the CSS (client security software), and download not only the most current CSS but also the Atmel driver (It's the name of the Company that Fabs the chip) and the SMBus driver.
You first must ensure that the chip is enabled in the bios. You may also choose to wipe it at this time in case it was a hand-me-down. NEVER WIPE IT AFTER YOU HAVE EVERYTHING WORKING FOR YOU>....
Then you install the SMBus driver.
Then you install the Atmel driver.
Then you install the IBM CSS.
Once CSS is installed, and config'ed you need to move the admin and personal keys off to a USB mem key or CDR and keep them in safe place --BUT KEEP THE ADMIN PRIVATE KEY handy ala mem key for future use. The key archice is exactly that and should not be stored on the drive where it is vulnerable to theft. The chip actually stores the keys for use on it's EPROM layer where they are safe from hack.
I will also suggest that you download the IBM (CSS) Password Manager add on if you are interested in single login ability.
You can download the on the fly file and folder encryption add on if you want, but I wouldn't mess with it until you firmly understand the solution/tech.
Reading the "manual" really does apply here.
I've been running the chip and CSS for quite some time now on a T23, A31, T40, and now a T41. I have it coupled with a Targus fingerprint reader for my single logon ability for all my initial system logon, web sites, apps, etc.