Also, a quick tip for installing the adapter:

1. Lube the bottom bracket shell and press both sides of of the adapter into the shell.
2. Install the drive side portion of the bottom bracket.
3. Once the drive side of the bottom bracket is snug, continue turning it with your bottom bracket tool until the holes for the fastening bolts line up with the holes in non-drive side adapter.

This is easiest way I have found to line up the holes for the adapter bolts.