Adobe Flash Player install help please

Hello,
Hi I had Adobe flash player installed on my wondows Vista
then for some reason it wasn't working properly so I uninstalled it then reinstalled it then it would not work I can't play games like addiciting games I can't watch any video files that require flash player, so I trie the uninstall from the Adobe site and then tried to reinstal agian and now it says cannot connect to the internet but I am connected and can go to any site.
I have tried adjusting setting in the tools internet options everything, nothing is working
I have been researching for about a week now and have tried just about every suggestion possible can somebody give me some new advice.