Try deleting the entry in favourites, closing down IE, opening again, go to the site and add to favourites again. I think it may well be a question of the page being cached locally or on your ISP's webcache.
Try going to Tools > Internet Options > Temporary Internet Files > Settings and click Every visit to the page. You should change this back later, or it will slow things down.
If the above doesn't work, try forcing a re-read by holding down the Ctrl key and clicking on Refresh or if you feel brave you could delete temporary internet files, but of course you loose all your hard-won files!
Otherwise the cache should expire after a while, and it will reload from the site (could be a couple of days though!).