passwords problem

[hed]

hello,
I've imported my IPB 2.3.6 to vBulletin 3.8.1.
Everything is ok (posts, topics), but when I (or any another person) try to login I receive "wrong password" error. I'm sure that my password is ok.
Can you help me?

[Jerry]

http://www.vbulletin.com/docs/html/impex_passwords