I believe what Hazelip wants is to receive a BCC when someone registers. A simple solution would be to just add a .BCC field in the functions_send_mail.asp file.
The problem with that is you will get BCCed on every piece of mail that goes through the forum like post reply notices, PM notices, etc..
Another, more efficient way is to simply edit the register.asp page so that a variable is passed to the functions_send_mail.asp page.
Like this:
Add the session tag to register.asp (or any other page that includes the email function)
<!--#include file="common.asp" -->
<%Session("BCC") = True%>
<!--#include file="functions/functions_send_mail.asp" -->
Now open functions_send_mail.asp and find the code for your particular email program. I will use CDOSYS for this example.
.To = strRecipientName
If
Session("BCC") = True then
.BCC = your@emailaddress.com
Session("BCC") = False
End If
Now, everytime someone registers, you will get a copy.