Ok, v1.71 firmware re-appears on the official site, but the firmware has been renamed in a wrong way, again. Anyway, you guys should know to rename it in a way iriver story is able to read it as a firmware.
I re-installed the firmware v1.71 again, over the old one, in the hope that they've fixed something.. Nope, nothing has been fixed. DOC format is still a complete mess to view. iRiver really hasn't put a lot of heart in this product.