My pages aren't updating.

When I try to overwrite my old files with new ones, my pages don't change. They stay the same and it even asks me if I want to overwrite them and I choose "overwrite". But the pages on my website are still the same. They didn't change.

Make sure you properly refresh your browser cache. Especially Firefox needs Shift+Reload to properly reload a recently updated webpage. This is no issue with SmartFTP.