How to use SketchUp Make 2015 after Pro Trial expires?

When I said:

I meant to try installing again.

Anyway, in another thread, a team member posted a link to a good knowledgebase article, and other troubleshooting steps:
http://forums.sketchup.com/t/loss-of-webdialog-functionality-in-all-extensions-3dw-and-ew/12151/8