Click on the following Adobe link for Windows. Go down to the bottom of the page where it says, "Still having problems?". Click on the link foe your browser.
Sorry Michael but I did not read your post thoroughly. It sounds like you are having problems with Real Player rather than Flash Player.
I Googled Real Player and see their website but I am not familiar with it so I cannot help you.
Good luck getting the problem resolved.
I'm also confused if you're having an issue with Flash Player or Real Player, but if it is Flash Player, please use the link Andy posts to download the offline installer to install Flash Player on your Windows XP machine.