In the future, I'd recommend posting a new thread instead of responding to a topic over a year old. Whatever issue you're encountering is likely very different than the ones here as there's been multiple releases since these issues.
Regardless, if it's only certain pages that the button doesn't show up on, it's likely due to a javascript conflict with whatever else is on that page. If you post a link to your site (or PM it if you'd prefer it to be private), we can help you locate it.
Facebook connect button appears on home, not in others
