I had the same problem with re-flashing and Joiku. I wrote to customer service and they told me that currently only way to get Joiku back in linux phone (N900) is emaliling Joiku to get downloading link that is valid for 12 hours. I got mine next day. I live in Finland and wrote to Joiku customer service in Finnish so communication and time zone was okay for me. I think 12 hours is too short if you are living something like 6-10 hours away from Finland time.