is the main lan working ?
if so you can use the siemens page to download their drivers for vista.
its that laptops default shipping o/s so they will have all the correct drivers you need on site.
make sure you use the english versions.
the wifi and usb ports can be shut down in the bios and no amount of drivers will get them running
go in to the bios screen and make sure next to wifi it states enabled.
the usb support is down to the main chipset software, so when your looking over the above link of drivers make sure you download and install the chipset drivers.
one other thing that springs to mind and that is vista stuck your nose in everything firewall.
if you have at any point not allowed it to continue when you have been installing drivers it will block them and your device will not work.
make sure when you go to install any driver from
Fujitsu Siemens site that you tell the firewall to continue, even if it pops up this software or driver has not been tested or it will block the install.