Following a serv crash, my provider moved my website on another server. I was running MT 2.64 and after this migration, I can't login anymore. Using MT-Medic, no blog or author can be found anymore. I think without any provider answer I would have to make a new install of MT :( Are there advices I could follow to save my templates and entries before making this new install. I'm affraid of a full rewrite if I go on a new install in the same directories...
Do you know what database you were using? Were you using berkeley DB? And did your service provider move your database as well as the software?