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Firsly, ensure your not uploading a cached copy of the file from your PC by closing down the file and ideally the application you're using to edit it (sounds obvious I know but I use Dreamweaver and all I was doing was uploading a cached copy)
Secondly, delete the content of your templates_c folder
Thirdly, ensure you have "Update Module Template .html files from themes/your themes/ templates directory?" turned to 'Yes' in System Admin --> Preferences.
Then try refreshing your page using Ctrl and F5 to force your borwser to refresh everyhting
Ted