Where can I get an full Alps application/driver for my Inspiron 8200?

I recently had a problem with losing my Partition Table which I eventually corrected and restored Windows XP Home on an Inspiron 8200 using an unbelievably useful program called FindPart. The only residual effects are that (less importantly Wincfg found two supposed installations of Windows and now makes me choose between the default one which gives me a blank XP screen, - called TEST, - and XP Home which I am forced to choose manually every time I go into Windows and) suddenly my touchpad has become super-sensitive and the cursor jumps all over the page as things accidentally touch the pad in the slightest way while you are trying to type a document. I tried re-installing the driver and when that made no difference, updating it. (there is an updated driver specifically for this computer on the Dell site though it does look suspiciously old). That didn't work either. Eventually I found a recommendation to slow down the speed on it in the ordinary Mouse Settings in Control Panel specifically to reduce this sensitivity. This didn't work either, though it DID slow down the response generally. I did see (not have) this problem once before, long ago on an Inspiron 3000. There was an update to IT'S Touchpad to give full control over sensitivity and I seem to remember it also let you do things like designate the right hand side of the pad to control scrolling etc. There is one further minor effect which is that moving the cursor over the screen SOMETIMES highlights text which hasnt been in any way 'selected'. I presume this will also go away when I install a proper Alps application instead of just an updated Dell driver. DriverGuide.com doesnt SEEM to have such a full application/driver and just recommends the Dell updated one. Alps won't respond to phone calls on this problem which is driving me mad as I cannot understand what it can possibly have to do with restoring my Partition Table or MBR. Does anyone know where it is please?