Installation Errors

I have tried to install this on my XP SP2 machine multiple times (beta and non-beta newest versions). I get to the point where I accept two prompts about unsigned certificates, then the process rolls back. I was able to find the install log and it reported the following errors:

DIFXAPP: ERROR: Error 0x80070002 encountered while installing the inf ‘C:\WINDOWS\system32\DRVSTORE\cmdatp_F95EADCEFB760D7A91BDF5380FCA586086107FFF\cmdatp.inf’. Unable to install network component ‘cvpn0101’

DIFXAPP: ERROR: Failed to install the network driver INF C:\WINDOWS\system32\DRVSTORE\cmdatp_F95EADCEFB760D7A91BDF5380FCA586086107FFF\cmdatp.inf.

Can anybody help???