Forum help with 301 redirect
 

I'm currently converting my phpbb 3 to vb4 cms. I don't want to loose search engine ranking and external incoming links, but I have no idea how to accomplish this. I've been told I need to setup a 301 redirect, but I don't even know how to begin?

Can anyone point me in the right direction? I tried various searches on here but haven't found anything yet.

Thanks!