Unistalling "drivers"?

I have two cellular phones, one made by Motorola and the other made by LG.

At first I tried to download Motorola's "modem" driver to my Windows Home XP
SP3 machine. There really wasn't much I could do, except try and transfer
songs and such. However my PC did not "see" or connect to the device.

No bother, I am trying another device, the LG EnV3. There are two "driver"
versions of a driver for the phone - version 4.8.4 and 4.9.4. And, taking
the easy way out, ran the executable for both.

Of course after running, "neither" was able to "see" the phone.

1) How do "uninstall" drivers? I'd like to try and uninstall all 3 and then
reinstall the latest LG one

Hopefully this might work.

When the bubble pops up at the bottom of the screen telling me that my USB
device is not functioning properly I can navigate to the USB Root Hub (4
ports) and see in bold the "Unknown Device", but upon bringing up further
information the driver I find is from Microsoft and it is dated July 2001.

Right now I am trying to find out where oh where LG and others have placed
said drivers. At one time, before some of you were born, I could just look
for the *.drv file, substitute it, and it would work. Now where are those
drv files now-a-days?

Phrustrated in Philadelphia