Adobe Trouble-About to give up [How to reinstall Flash Player for Opera and IE on Vista?]

I have Windows Vista Biz. I use Opera and Internet Explorer. All was well until Flash updated to Flash23. Then my flash stoped working in either browser. I got on the adobe web site and followed instructions about what to do. I have tried uninstalling and reinstalling flash23, didn't work. I have tried unistalling and reinstalling an earlier version when things were fine. That didn't work. I even tried making sure not to auto update on the earlier version so it would not default to flash 23 and nothing I have done works. In Opera flash will install but then it doesn't work or only works on some things. In IE it won't install at all. Does anyone know how to fix this and if not is there another program besides adobe flash I can use in it's place.