Help how to upload old site database

[solution24]

dear users i have a old site data base with 700 users i wont them to join my new site but i can t upload the old database while having the new one i just wana mass mails my users on the old database is their a tool tht would do tht for me?

[Dismounted]

You can use ImpEx (http://www.vbulletin.com/docs/html/impex) to import what you want.