how to update system with new version

[badcat]

But then it also overwrites the data and theme map, i don't think thats good.

I agree - I've only been replacing the admin folder. But I'd noticed that there were a few changed .htaccess files which I've also used.

On the same topic, I'd also suggested adding "deny" to the htaccess for the backup/zips folder, anyone agree? or should it really be "allow"?