cannot install Creo elements 5

I had this software on my computer last year, so It shouldn't be a compatibility issue, but I am unable to finish the install of the cad software. I have had an active account with PTC for over a year, and the activating of the product worked great. I was able to generate a license file and all that. When it gets to the copy files page (with the green progress bar) it inevitably hangs at 1% or 2%. I have been told that this can take a long time if you have slow internet, but I have had the installer running for 6+ hours now. if your not familiar with the screen or step I am talking about then I attached a screen shot for you. I am running windows vista sp2 home premium.