Binocs,
Being an inveterate and curious fiddler, if it was me in your shoes I'd be wanting to know why IE6 didn't work and I'd probably download the update again and try a second time.
If you have the patience, time and on-line hours to spare, it maybe worth downloading IE6 from the MS Windows Update site again - clutching at straws here, but maybe you got a bad file first time around. In the installer, there's an advanced option to save all the files to disk for later installation, rather than install on receipt and have no saved copy. That way you can reinstall again and again if you want to without having to download each time.
Then again, if you're happy with IE5 ...
Cheers
AA