MP3 player installation, Vista, Driver error - code 10

Since I purchased my Dell Inspiron with Vista 32-bit (in August of
2007)... I have connected 5 different MP3 players... the 2 SanDisk
ones worked ok (drag and drop in window explorer, no syncing) because
I could set them to MSD (?) vs. MTP's. However, the Samsung and 2
Creative (including one the one I purchased 2 weeks ago that
advertised it was Vista compatible) don't have the options to set to
the other setting and my computer doesn't recognize them after telling
me that the driver installation failed or can not start. All of these
MP3 palyers have also been pluggeds into a comp with XP and worked as
expected. When I go into Device Manager I am told that the driver is
the most up to date one, the driver installed correctly but could not
start, code 10, etc.. I tried to install hardware and got a code 10
as well. I show that I have insdtalled SP1. I am so frustrated and
am about to toss the computer out the window. I have spent too many $
$ and hourw trying and searching every where for an answer/solution.
The one hotfix I found gives me an error that it is not for my
system. HELP!!!?????