issues with how to/ do i install upgrade 1.6.3 to 1.6.10

[mikey23]

Ok i tried doing that but could not find the folders needed
No as far as (you need to provide required temporary privileges) how do i do this?

All i am getting about the posting from macs (Newer ones) is that they can see everything fine, but when trying to post it just deletes it and comes up blank...