adobe flash player not showing up in extensions chrome

Does this give you any clue as to what is wrong? It is WAY beyond my techincal competence. There is a FlashInstall file that opens in Notepad when I click on it. There is no flashinstall.log file in that folder. It has become increasingly frustrating with the approaching HSC only a couple of weeks away !

I have been searching forums for hours and trying various methods to attempt to fix the problem myself, but have been unsuccessful. I assume all the above browsers are 32bit as well, however I'm not sure how to check this. After which the 'movie'/'f' symbol does not show up in the installation check online) My operating system is 32 bit Vista (Have checked this file- C:/Windows/System32/Adobe - and found that the flash player files are absent despite being 'told' it has successfully installed. Ensuring that flash was enabled in all above browsers.All presented the same outcome: blank pages etc. Checking all mentioned websites on three browsers -> Firefox 3.5.11, IE 8, Google Chrome.Restarting the system after both un-installing and re-installing.un-installing, and re-installing (numerous times).The web page will load, indicating 'done' in the bottom left corner of the screen, but the screen will be white. Also, sites I need for my HSC preparation are not working, such as the Board of Studies Online Multiple Choice, and Maths Online. Sites such as youtube will load, but fail to display the video I want to view, and showing only a black box. However, it should also be noted that there is no notification indicating I need to install the software. I recently updated my flash player, however since then, websites requiring flash do not seem to fully load.

Adobe flash player not showing up in extensions chrome