The old i-bmw has been made read only and archived. It is in-tact and fully searchable.
On the main forum page, look at the link below "Other K-Bikes". That button, the "Community Archive Forums" takes you to the old i-bmw. If you want to repost something, you will have to cut and paste into the new platform; unfortunately, they aren't compatible and it was not a simple task to port over all posts. This was the best compromise available.