OK, here's the meat/potatoes of it:
[2009/12/21 02:45:59 1272.222739 Driver Install]
#-019 Searching for hardware ID(s): pci\ven_10de&dev_0322&subsys_01b910de&rev_a1,pci\ven_10de&dev_0322&subsys_01b910de,pci\ven_10de&dev_0322&cc_030000,pci\ven_10de&dev_0322&cc_0300
#-018 Searching for compatible ID(s): pci\ven_10de&dev_0322&rev_a1,pci\ven_10de&dev_0322,pci\ven_10de&cc_030000,pci\ven_10de&cc_0300,pci\ven_10de,pci\cc_030000,pci\cc_0300
#-019 Searching for hardware ID(s): pci\ven_10de&dev_0322&subsys_01b910de&rev_a1,pci\ven_10de&dev_0322&subsys_01b910de,pci\ven_10de&dev_0322&cc_030000,pci\ven_10de&dev_0322&cc_0300
#-018 Searching for compatible ID(s): pci\ven_10de&dev_0322&rev_a1,pci\ven_10de&dev_0322,pci\ven_10de&cc_030000,pci\ven_10de&cc_0300,pci\ven_10de,pci\cc_030000,pci\cc_0300
#-199 Executing "C:\D\DPINST.exe" with command line: DPInst.exe /c /s /sh /lm /el /sa
#I022 Found "PCI\VEN_10DE&DEV_0322" in c:\d\g\n\nv4_disp.inf; Device: "NVIDIA GeForce FX 5200"; Driver: "NVIDIA GeForce FX 5200"; Provider: "NVIDIA"; Mfg: "NVIDIA"; Section name: "nv4_NV3x".
#I023 Actual install section: [nv4_NV3x]. Rank: 0x00002001. Effective driver date: 10/22/2006.
#-166 Device install function: DIF_SELECTBESTCOMPATDRV.
#I063 Selected driver installs from section [nv4_NV3x] in "c:\d\g\n\nv4_disp.inf".
#I320 Class GUID of device remains: {4D36E968-E325-11CE-BFC1-08002BE10318}.
#I060 Set selected driver.
#I058 Selected best compatible driver.
[2009/12/21 02:45:59 1272.223013 Driver Install]
#-019 Searching for hardware ID(s): pci\ven_10de&dev_0322&subsys_01b910de&rev_a1,pci\ven_10de&dev_0322&subsys_01b910de,pci\ven_10de&dev_0322&cc_030000,pci\ven_10de&dev_0322&cc_0300
#-018 Searching for compatible ID(s): pci\ven_10de&dev_0322&rev_a1,pci\ven_10de&dev_0322,pci\ven_10de&cc_030000,pci\ven_10de&cc_0300,pci\ven_10de,pci\cc_030000,pci\cc_0300
#-019 Searching for hardware ID(s): pci\ven_10de&dev_0322&subsys_01b910de&rev_a1,pci\ven_10de&dev_0322&subsys_01b910de,pci\ven_10de&dev_0322&cc_030000,pci\ven_10de&dev_0322&cc_0300
#-018 Searching for compatible ID(s): pci\ven_10de&dev_0322&rev_a1,pci\ven_10de&dev_0322,pci\ven_10de&cc_030000,pci\ven_10de&cc_0300,pci\ven_10de,pci\cc_030000,pci\cc_0300
#-199 Executing "C:\D\DPINST.exe" with command line: DPInst.exe /c /s /sh /lm /el /sa
#I022 Found "PCI\VEN_10DE&DEV_0322" in c:\windows\system32\drvstore\nv4_disp_ae5d10ce193f16156d55549c56b088f82ec64dfa\nv4_disp.inf; Device: "NVIDIA GeForce FX 5200"; Driver: "NVIDIA GeForce FX 5200"; Provider: "NVIDIA"; Mfg: "NVIDIA"; Section name: "nv4_NV3x".
#I023 Actual install section: [nv4_NV3x]. Rank: 0x00002001. Effective driver date: 10/22/2006.
#-166 Device install function: DIF_SELECTBESTCOMPATDRV.
#I063 Selected driver installs from section [nv4_NV3x] in "c:\windows\system32\drvstore\nv4_disp_ae5d10ce193f16156d55549c56b088f82ec64dfa\nv4_disp.inf".
#I320 Class GUID of device remains: {4D36E968-E325-11CE-BFC1-08002BE10318}.
#I060 Set selected driver.
#I058 Selected best compatible driver.
[2009/12/21 02:46:00 1272.223119]
#-199 Executing "C:\D\DPINST.exe" with command line: DPInst.exe /c /s /sh /lm /el /sa
#I060 Set selected driver.
#-019 Searching for hardware ID(s): pci\ven_10de&dev_0322&subsys_01b910de&rev_a1,pci\ven_10de&dev_0322&subsys_01b910de,pci\ven_10de&dev_0322&cc_030000,pci\ven_10de&dev_0322&cc_0300
#-018 Searching for compatible ID(s): pci\ven_10de&dev_0322&rev_a1,pci\ven_10de&dev_0322,pci\ven_10de&cc_030000,pci\ven_10de&cc_0300,pci\ven_10de,pci\cc_030000,pci\cc_0300
#I022 Found "PCI\VEN_10DE&DEV_0322" in c:\windows\system32\drvstore\nv4_disp_ae5d10ce193f16156d55549c56b088f82ec64dfa\nv4_disp.inf; Device: "NVIDIA GeForce FX 5200"; Driver: "NVIDIA GeForce FX 5200"; Provider: "NVIDIA"; Mfg: "NVIDIA"; Section name: "nv4_NV3x".
#I023 Actual install section: [nv4_NV3x]. Rank: 0x00002001. Effective driver date: 10/22/2006.
#-166 Device install function: DIF_SELECTBESTCOMPATDRV.
#I063 Selected driver installs from section [nv4_NV3x] in "c:\windows\system32\drvstore\nv4_disp_ae5d10ce193f16156d55549c56b088f82ec64dfa\nv4_disp.inf".
#I320 Class GUID of device remains: {4D36E968-E325-11CE-BFC1-08002BE10318}.
#I060 Set selected driver.
#I058 Selected best compatible driver.
#-124 Doing copy-only install of "PCI\VEN_10DE&DEV_0322&SUBSYS_01B910DE&REV_A1\4&1AFFAA3D&0&0008".
#-166 Device install function: DIF_REGISTER_COINSTALLERS.
#I056 Coinstallers registered.
#-166 Device install function: DIF_INSTALLINTERFACES.
#-011 Installing section [nv4_NV3x.Interfaces] from "c:\windows\system32\drvstore\nv4_disp_ae5d10ce193f16156d55549c56b088f82ec64dfa\nv4_disp.inf".
#I054 Interfaces installed.
#-166 Device install function: DIF_INSTALLDEVICE.
#I123 Doing full install of "PCI\VEN_10DE&DEV_0322&SUBSYS_01B910DE&REV_A1\4&1AFFAA3D&0&0008".
#I121 Device install of "PCI\VEN_10DE&DEV_0322&SUBSYS_01B910DE&REV_A1\4&1AFFAA3D&0&0008" finished successfully.
I'll try to dig a little deeper, but it looks like it installed just fine. Then later on, you did a driver rollback. Did you try to restart before you rolled back the driver?
What happens if you integrate DriverPacks normally (ie, DON'T use SAD)?