problems updating to itunes 8

[MiddyR]

I am having an issue with the update for itunes not wanting to install on vista. never had the problem before but in the middle of the automated download it will pop up an error message. It doesnt say what the problem is but then I tried the download from the apple store to remove the old version and install the new one and that method just got a error message say F:/ is an invalid drive. which is pretty much because there is no F drive on the computer and Im not sure how to make it go to the C drive like it should