MacBook Pro 17" Unibody RAM Replacement
Steps are not really in reverse order, they are but missing one step. There is a plastic snap that must be moved so the bottom will go back on there. As commented on the first page, the screw holes are all at an angle. Make sure to find the angle. Also the blue lock-tight was never mentioned. Also a great opportunity to clean.
MacBook Pro 17" Unibody Battery Replacement
There was no tab on my model. Battery is affixed to board and screws must be removed.