Sorry about that.
Here's the link to the Fujitsu site http://support.fujitsupc.com/CS/Portal/supportsearch.do
The only problems I can see is that they of course only have XP drivers.
And on such an old laptop to install the 64 bit version verse the 32 bit version only compounds your problems.
Please go to your device manager>click on the device>properties>details tab>hardware id. Snip and post the hardware id and we'll see if we can find a compatible driver for you.