Adobe Flash Player on 64 bit

Hello,
I have Windows Vista and a 64 bit operating system. I cannot download Adobe Flash Player. However, I realize you can download it in the 32 bit version of Internet Explorer on a 64 bit operating system. I used to have a 32 bit version of Internet and I used it, but one day I went to click on it and it said it had been removed. I never remembered deleting it at all. And plus my mother is the only other person that uses this computer, but I know she wouldn't do that because she doesn't know much when it comes to technology. I've searched on my computer for it, but I cann't find the 32 bit version. It's very frustrating because I cannot watch videos or listen to music at all. Is there somewhere I can download the 32 bit version of Internet Explorer? I tried to download it from the actual internet explorer site and it was under "internet explorer 7 for 64 bit server/client" but it would not let me download it because it said I need to login with an Administrator account. The thing is my account IS an Administrator account. It's so frustrating. Please, can anyone help me with this?