Have you tried launching Logic in 32-bit mode? If not - it is worth a shot. Navigate to Logic Pro in the Finder, and right-click, selecting "Get Info". On that screen - click the [ ] Open in 32-bit mode. Logic will do an AU Scan when you launch it next time, picking up any added sw instruments. After Analog Lab (or any added instrument) is registered in Logic that first time, you can go back to the "Get Info" screen, and unselect the Open in 32-bit option.