Try to upgrade but it says the mybb off website is 1.6.6
I don't understand your question. Please be more descriptive. You tried to upgrade but it says the latest version is 1.6.6? That's what I could grab from you.
I downloaded 1.6.7 I go to upgrade from 1.6.6 but says im upgradeing to 1.6.6?
How so? Can you please post a screenshot? It's probably just telling you you're upgrading from 1.6.6.
Are you sure you uploaded the 1.6.7 files correctly? Can you please re-upload them again very carefully just to be sure? The new files must overwrite the current ones.
This is my 3rd time doing it why I came to support.
trade, the upgrade files do work just fine. Have you tried dumping your cache or hard-reloading the page. That version in the string would only appear if only the older install files were there.