How to correct user_id ?

Friday 25 July 2008 1:08:25 am

user_id and owner_id of forum the same date and same name

I export the sql file from the old website , and I want to upgrate the ez vision to 4.0
upgrate after. I import the sql file ,then I find the forum that all the user_id and user_name the same in froum files, I don't know why ? can you help me ?

Thank you very much!!!