Are you positive you saved the file you changed before uploading it to the server? If so, open the page in the browser, clear the browser cache, close the browser, boot, and see if the correct file shows in the browser.
If this does not work, contact "support" for your host/server and ask them.
Incidentally, your file is HTML Proprietary, its running in quirksmode, and using a doctype and means and methods left over from the 90s. There are 39 markup validation errors.
Nowadays layouts are constructed using html/css. Here is a
simple 2 column css layout that will work well with your content.
