Dell XPS M1210 Driver Missing. (data interface?)

Hi, I have a XPS M1210 here which has a faulty hard drive.  I've replaced the drive reinstalled xp all the drivers available from the dell website (no recovery disks).  I've noticed 2 devices in the device manager with missing drivers, they are both called "data interface".  I've done some google searches, there are a few websites which mention possible built in modems (it does have a sim card slot) or a finger print scanner (doesnt have this).  I'm at a loss as to what they could be any ideas?

I usually look at the hardware ID and use something like pcidatabase.com to try and help find out what the device is, but these dont really have one that i recognise, they have: -

USB\Vid_413c&Pid_8116&Rev_0000&MI_00
USB\Vid_413c&Pid_8116&MI_00

My thoughts are that it could be something either to do with the webcam, but thats installed and working fine, the multimedia buttons or something like that, the strange thing is that ive installed all the drivers from the site, the only thing ive not been able to install is the dell quickset as the link is broken!

Any help would be a greatly appreciated

Martin @ JWP Computers

p.s tried calling dell for support, decided to hang up after about 15 mins on hold.........  :-(