Help! Drivers are gone!

Ok, I just downloaded Xp service pack 2 for my Sony Vaio laptop and after the restart my video drivers and sounds drivers are completely gone. On the front of the laptop it says the version of the laptop is PCV-RX755 and on the back of the laptop it says pcv-7752 which is kind of strange in my opinion.

System:

Microsoft Windows XP
Professional
Version 2002
Service Pack 2

Computer:

Intel(R)
Pentium(R) 4 CPU 2.00GHz
2.02 GHz, 480 MB of RAM

I went to the sony site already and do the version search to see which one I had for sure of the two that it said on the laptop. The version checker said I have PCV-RX755 but.. when I went to download the drivers for that version it didn't help at all. So I searched for the pcv-7752 and sony couldn't even find that version in the data base. I have turned my computer all the way off already and waited a little bit and turned it back on but that didn't help either. I have been trying for over 4 hours now and still no luck. I was hoping someone could relate to this problem and help me out a bit. Thanks a lot