top5b

I have Vista 64 Home Prem verson, and I had a hard time to install WMDC 6.1 to my computer. When I installed this software, it said fail to install. Then told me to go to C:\windows\Mobile center and run setup from here. I did what it told me, but I can't get it to install. After this failure installation, I saw Windows Mobile Device Center from Start Program. I cliked on it, and it tried to install the WMDC again, then gave me the same error message.
I spend hours and hours to google, but I can't find solution. Can anyone help me please.

Thanks