Cannot Find An Installer For IE8 For Windows 7 X64

after upgrading to internet explorer 9, i realized that ie9 doesn't work with most of the things i do in the browser!! facebook locks up, Internet doesn't like it, and most of all, i can't do my online classes because internet explorer 9 is not supported by webassign or csi blackboard. webassign and blackboard do not work in firefox, either.i thought, uninstall ie9 and put internet explorer 8 back on. after being to over 20 different websites, i cannot find an installer for ie8 for windows 7 x64 anywhere. i did try the installers for both windows xp x64 and windows vista x64, but both of them said the installer was incompatable with my version of windows.

i contacted microsoft and they told me to go to programs and features, windows features, and check internet explorer 8. but after i uninstalled ie9, only the internet explorer 9 feature was listed, not 8.so i called support back, and this time they didn't tell me to do that. instead, the support rep, as stupid as he was, told me that internet explorer 8 is not compatable with windows 7. i told him, my computer came with ie8 pre-installed. windows updates is what broke it!so basically, tl;dr, i need an installer for ie8 for windows 7 x64.